Astronomy Astrophoto Gallery en-us http://www.astrophotogallery.org Fri, 10 Sep 2010 08:32:12 -0400 PhotoPost Pro 7.0 60 NGC6960 - Western Veil http://www.astrophotogallery.org/september-2010-mediumnebula/p6139-ngc6960western-veil.html <a href="http://www.astrophotogallery.org/september-2010-mediumnebula/p6139-ngc6960western-veil.html"><img title="NGC6960_QHY9C_SVR105_Final3.jpg" border="0" src="http://www.astrophotogallery.org/data/883/thumbs/NGC6960_QHY9C_SVR105_Final3.jpg" alt="NGC6960_QHY9C_SVR105_Final3.jpg" /></a><br /><br />by: templec<br /><br />Description: This western portion of the Veil Nebula supernova remnant is also known as &quot;The Witch's Broom&quot;. Even though it has a composite magnitude of 7.00, it is remarkably difficult to see visually without an OIII nebular filter. It is part of a larger area known as the Cygnus Loop, which also consists of the Eastern Veil and Pickering's Triangular Wisp. Of note is the large number of foreground stars. These stars are from our own Milky Way, as one of its arms lies in the line-of-sight with Cygnus. Telescope: Stellarvue Raptor SVR105 @ f/7 Accessories: Stellarvue SFF7-21 flattener Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using a Starlight Xpress Lodestar via PHD Camera: QHY9-C one-shot color CCD @ -20.0C Filters: Astronomik IR block Exposure: 164 x 240sec (10hr. 56min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, Min/Max excluded average, DDP, curves, levels, color balance Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja; Carboni’s Tools Date(s): September 3, 4 &amp; 5, 2010 Temperature(s): N1:73ºF - 65ºF; N2:70ºF - 60ºF; N3:71ºF - 61ºF SQM reading (begin - end): N1:18.91 - 19.52; N2:19.21 - 19.51; N3:19.27 - 19.60 Location: Hendersonville, TN<br /><br />5 comments templec Wed, 08 Sep 2010 15:23:37 -0400 NGC6960 - Western Veil http://www.astrophotogallery.org/september-2010-mediumnebula/p6140-ngc6960western-veil.html <a href="http://www.astrophotogallery.org/september-2010-mediumnebula/p6140-ngc6960western-veil.html"><img title="NGC6960_QHY9C_SVR105_Final3.jpg" border="0" src="http://www.astrophotogallery.org/data/883/thumbs/NGC6960_QHY9C_SVR105_Final3.jpg" alt="NGC6960_QHY9C_SVR105_Final3.jpg" /></a><br /><br />by: templec<br /><br />Description: This western portion of the Veil Nebula supernova remnant is also known as &quot;The Witch's Broom&quot;. Even though it has a composite magnitude of 7.00, it is remarkably difficult to see visually without an OIII nebular filter. It is part of a larger area known as the Cygnus Loop, which also consists of the Eastern Veil and Pickering's Triangular Wisp. Of note is the large number of foreground stars. These stars are from our own Milky Way, as one of its arms lies in the line-of-sight with Cygnus. Telescope: Stellarvue Raptor SVR105 @ f/7 Accessories: Stellarvue SFF7-21 flattener Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using a Starlight Xpress Lodestar via PHD Camera: QHY9-C one-shot color CCD @ -20.0C Filters: Astronomik IR block Exposure: 164 x 240sec (10hr. 56min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, Min/Max excluded average, DDP, curves, levels, color balance Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja; Carboni’s Tools Date(s): September 3, 4 &amp; 5, 2010 Temperature(s): N1:73ºF - 65ºF; N2:70ºF - 60ºF; N3:71ºF - 61ºF SQM reading (begin - end): N1:18.91 - 19.52; N2:19.21 - 19.51; N3:19.27 - 19.60 Location: Hendersonville, TN templec Wed, 08 Sep 2010 15:23:37 -0400 NGC6960 - Western Veil http://www.astrophotogallery.org/september-2010-mediumnebula/p6141-ngc6960western-veil.html <a href="http://www.astrophotogallery.org/september-2010-mediumnebula/p6141-ngc6960western-veil.html"><img title="NGC6960_QHY9C_SVR105_Final3.jpg" border="0" src="http://www.astrophotogallery.org/data/883/thumbs/NGC6960_QHY9C_SVR105_Final3.jpg" alt="NGC6960_QHY9C_SVR105_Final3.jpg" /></a><br /><br />by: templec<br /><br />Description: This western portion of the Veil Nebula supernova remnant is also known as &quot;The Witch's Broom&quot;. Even though it has a composite magnitude of 7.00, it is remarkably difficult to see visually without an OIII nebular filter. It is part of a larger area known as the Cygnus Loop, which also consists of the Eastern Veil and Pickering's Triangular Wisp. Of note is the large number of foreground stars. These stars are from our own Milky Way, as one of its arms lies in the line-of-sight with Cygnus. Telescope: Stellarvue Raptor SVR105 @ f/7 Accessories: Stellarvue SFF7-21 flattener Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using a Starlight Xpress Lodestar via PHD Camera: QHY9-C one-shot color CCD @ -20.0C Filters: Astronomik IR block Exposure: 164 x 240sec (10hr. 56min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, Min/Max excluded average, DDP, curves, levels, color balance Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja; Carboni’s Tools Date(s): September 3, 4 &amp; 5, 2010 Temperature(s): N1:73ºF - 65ºF; N2:70ºF - 60ºF; N3:71ºF - 61ºF SQM reading (begin - end): N1:18.91 - 19.52; N2:19.21 - 19.51; N3:19.27 - 19.60 Location: Hendersonville, TN templec Wed, 08 Sep 2010 15:23:37 -0400 NGC7789 - open cluster http://www.astrophotogallery.org/member-galleries/p6068-ngc7789open-cluster.html <a href="http://www.astrophotogallery.org/member-galleries/p6068-ngc7789open-cluster.html"><img title="NGC7789_final.jpg" border="0" src="http://www.astrophotogallery.org/data/500/thumbs/NGC7789_final.jpg" alt="NGC7789_final.jpg" /></a><br /><br />by: templec<br /><br />Description: This is our second image from our SVR105. This image was taken using the Stellarvue SFF7-21 flattener. It is a perfect match for the scope. The stars are round all the way to the edge of the image. We were already impressed with the scope but with the addition of the field flattener, we were just blown away. NGC 7789 is a fairly tightly-packed open cluster of over 300 members in the constellation Cassiopeia. It was discovered in 1783 by Caroline Herschel. At a magnitude of 6.7, it is easily visible with binoculars. Telescope: Stellarvue Raptor SVR105 @ f/7 Accessories: Stellarvue SFF7-21 flattener Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using a Starlight Xpress Lodestar via PHD Camera: QHY9-C one-shot color CCD @ -20.0C Filters: Astronomik CLS; Astronomik IR-block Exposure: 31 x 240sec (2hr. 4min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja Date(s): August 27, 2010 Location: Hendersonville, TN<br /><br />4 comments templec Sun, 29 Aug 2010 18:25:37 -0400 NGC7789 - open cluster http://www.astrophotogallery.org/member-galleries/p6069-ngc7789open-cluster.html <a href="http://www.astrophotogallery.org/member-galleries/p6069-ngc7789open-cluster.html"><img title="NGC7789_final.jpg" border="0" src="http://www.astrophotogallery.org/data/500/thumbs/NGC7789_final.jpg" alt="NGC7789_final.jpg" /></a><br /><br />by: templec<br /><br />Description: This is our second image from our SVR105. This image was taken using the Stellarvue SFF7-21 flattener. It is a perfect match for the scope. The stars are round all the way to the edge of the image. We were already impressed with the scope but with the addition of the field flattener, we were just blown away. NGC 7789 is a fairly tightly-packed open cluster of over 300 members in the constellation Cassiopeia. It was discovered in 1783 by Caroline Herschel. At a magnitude of 6.7, it is easily visible with binoculars. Telescope: Stellarvue Raptor SVR105 @ f/7 Accessories: Stellarvue SFF7-21 flattener Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using a Starlight Xpress Lodestar via PHD Camera: QHY9-C one-shot color CCD @ -20.0C Filters: Astronomik CLS; Astronomik IR-block Exposure: 31 x 240sec (2hr. 4min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja Date(s): August 27, 2010 Location: Hendersonville, TN templec Sun, 29 Aug 2010 18:25:37 -0400 NGC7789 - open cluster http://www.astrophotogallery.org/member-galleries/p6070-ngc7789open-cluster.html <a href="http://www.astrophotogallery.org/member-galleries/p6070-ngc7789open-cluster.html"><img title="NGC7789_final.jpg" border="0" src="http://www.astrophotogallery.org/data/500/thumbs/NGC7789_final.jpg" alt="NGC7789_final.jpg" /></a><br /><br />by: templec<br /><br />Description: This is our second image from our SVR105. This image was taken using the Stellarvue SFF7-21 flattener. It is a perfect match for the scope. The stars are round all the way to the edge of the image. We were already impressed with the scope but with the addition of the field flattener, we were just blown away. NGC 7789 is a fairly tightly-packed open cluster of over 300 members in the constellation Cassiopeia. It was discovered in 1783 by Caroline Herschel. At a magnitude of 6.7, it is easily visible with binoculars. Telescope: Stellarvue Raptor SVR105 @ f/7 Accessories: Stellarvue SFF7-21 flattener Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using a Starlight Xpress Lodestar via PHD Camera: QHY9-C one-shot color CCD @ -20.0C Filters: Astronomik CLS; Astronomik IR-block Exposure: 31 x 240sec (2hr. 4min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja Date(s): August 27, 2010 Location: Hendersonville, TN templec Sun, 29 Aug 2010 18:25:37 -0400 NGC457 - The Owl Cluster http://www.astrophotogallery.org/member-galleries/p6066-ngc457the-owl-cluster.html <a href="http://www.astrophotogallery.org/member-galleries/p6066-ngc457the-owl-cluster.html"><img title="NGC457_final.jpg" border="0" src="http://www.astrophotogallery.org/data/500/thumbs/NGC457_final.jpg" alt="NGC457_final.jpg" /></a><br /><br />by: templec<br /><br />Description: This is our first light with the new Stellarvue SVR105 Raptor. When we received the scope, we fully expected FedEx to deliver a bunch of clouds with the scope, but much to our surprise, we had clear skies. We just couldn't resist imaging with it, despite the fact that the field flattener wasn't due to arrive until the next day. Aside from the elongated corner stars, we were very pleased with the image this scope delivered. Stars were sharp, thanks to the high quality optics and the ease of focus with the Feathertouch. Color from this scope is great and stars were easily resolved, again, thanks to superior optics. Scope used: Stellarvue SVR105 Raptor @f/7 (no reducer/flattener) Camera: QHY9-C one-shot color CCD @ -20.0C Filter(s): Astronomik CLS; Astronomik IR block Mount: Orion Atlas EQ-G w/ EQMOD Guiding: TS-OAG9 Off-axis, using a Starlight Xpress Lodestar via PHD Exposure: 32 x 240sec (2hr. 8min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja Date(s): August 26, 2010 Location: Hendersonville, TN<br /><br />4 comments templec Sun, 29 Aug 2010 18:11:45 -0400 NGC457 - The Owl Cluster http://www.astrophotogallery.org/member-galleries/p6067-ngc457the-owl-cluster.html <a href="http://www.astrophotogallery.org/member-galleries/p6067-ngc457the-owl-cluster.html"><img title="NGC457_final.jpg" border="0" src="http://www.astrophotogallery.org/data/500/thumbs/NGC457_final.jpg" alt="NGC457_final.jpg" /></a><br /><br />by: templec<br /><br />Description: This is our first light with the new Stellarvue SVR105 Raptor. When we received the scope, we fully expected FedEx to deliver a bunch of clouds with the scope, but much to our surprise, we had clear skies. We just couldn't resist imaging with it, despite the fact that the field flattener wasn't due to arrive until the next day. Aside from the elongated corner stars, we were very pleased with the image this scope delivered. Stars were sharp, thanks to the high quality optics and the ease of focus with the Feathertouch. Color from this scope is great and stars were easily resolved, again, thanks to superior optics. Scope used: Stellarvue SVR105 Raptor @f/7 (no reducer/flattener) Camera: QHY9-C one-shot color CCD @ -20.0C Filter(s): Astronomik CLS; Astronomik IR block Mount: Orion Atlas EQ-G w/ EQMOD Guiding: TS-OAG9 Off-axis, using a Starlight Xpress Lodestar via PHD Exposure: 32 x 240sec (2hr. 8min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja Date(s): August 26, 2010 Location: Hendersonville, TN templec Sun, 29 Aug 2010 18:11:45 -0400 Stellarvue SVR105 Raptor on Atlas EQ-G http://www.astrophotogallery.org/equipment-photos/p6065-stellarvue-svr105-raptor-on-atlas-eq-g.html <a href="http://www.astrophotogallery.org/equipment-photos/p6065-stellarvue-svr105-raptor-on-atlas-eq-g.html"><img title="OnTheEQG.JPG" border="0" src="http://www.astrophotogallery.org/data/505/thumbs/OnTheEQG.JPG" alt="OnTheEQG.JPG" /></a><br /><br />by: templec<br /><br />Description: Here is our Stellarvue SVR105 Raptor mounted on our Atlas EQ-G. With the dewshield fully extended, this scope is 27 inches long. The scope weighs about 11 pounds without our camera attached, but even when we have the scope fully dressed, the Atlas handles it with ease. templec Sun, 29 Aug 2010 15:21:49 -0400 Stellarvue SVR105 Raptor http://www.astrophotogallery.org/equipment-photos/p6064-stellarvue-svr105-raptor.html <a href="http://www.astrophotogallery.org/equipment-photos/p6064-stellarvue-svr105-raptor.html"><img title="SideView.JPG" border="0" src="http://www.astrophotogallery.org/data/505/thumbs/SideView.JPG" alt="SideView.JPG" /></a><br /><br />by: templec<br /><br />Description: Here is the latest addition to our family ;-)) We ordered it on August 17 and it arrived at our door on August 26. It is the Stellarvue SVR105 Raptor. This is a 105mm f/7 apochromatic triplet with a 3&quot; Feathertouch focuser and carbon fiber tube. We also purchased the SFF7-21 field flattener that is a perfect match for this scope. The Feathertouch focuser has no problem handling our load and is very easy to focus by hand. Although we have only imaged with it twice, we are very impressed with what we have seen.<br /><br />2 comments templec Sun, 29 Aug 2010 15:15:56 -0400 NGC6960 - The Western Veil Nebula http://www.astrophotogallery.org/nebulae/p6009-ngc6960the-western-veil-nebula.html <a href="http://www.astrophotogallery.org/nebulae/p6009-ngc6960the-western-veil-nebula.html"><img title="NGC6960_QHY9C_final.jpg" border="0" src="http://www.astrophotogallery.org/data/629/thumbs/NGC6960_QHY9C_final.jpg" alt="NGC6960_QHY9C_final.jpg" /></a><br /><br />by: templec<br /><br />Description: Here's an image from our first successful night out with our new QHY9-C camera and the addition of a Moonlite focuser on the ED80. This is a meager 2 hours of integration time. We realize that we need more time on this object, but were impressed with the camera's sensitivity in such a short period of time. We are anxiously awaiting clear skies so we can get out and see what the camera will do with more integration time. Telescope: Orion ED80 (f/7.5) w/Moonlite focuser Camera: QHY9-C @ -20C Filter(s): Astronomik CLS; Astronomik IR block Accessories: AT2FF zero-power field flattener; TS-OAG9 w/ SX Lodestar Exposures: 24 x 300 sec (2 hours total) Acquisition: ImagesPlus Camera Control v4.00 Processing: ImagesPlus v3.80; PSCS4; Gradient Xterminator; Noise Ninja Date(s): August 19, 2010 Location: Hendersonville, TN<br /><br />8 comments templec Sat, 21 Aug 2010 14:47:26 -0400 IC1318 - The Butterfly Nebula in HaRGB http://www.astrophotogallery.org/august-2010-hardnebula/p5971-ic1318the-butterfly-nebula-in-hargb.html <a href="http://www.astrophotogallery.org/august-2010-hardnebula/p5971-ic1318the-butterfly-nebula-in-hargb.html"><img title="IC1318_HaRGB_final2.jpg" border="0" src="http://www.astrophotogallery.org/data/875/thumbs/IC1318_HaRGB_final2.jpg" alt="IC1318_HaRGB_final2.jpg" /></a><br /><br />by: templec<br /><br />Description: This region of the sky is rich in HII nebulosity. The brightest star in the image, Sadr (Gamma Cygni) lies at the heart of the constellation Cygnus, although it is much closer to us than the nebulae. Just below Sadr is The Butterfly (IC 1318), which is not actually two separate nebulae, but a single cloud partially obscured by a dark dust lane, LDN 889. To the top right is The Crescent Nebula, NGC 6888. Several open clusters and dark nebulae are also visible in this wide field-of-view. This image is dedicated to the memory of our departed furry baby, Missy. One of her favorite things to do was to chase butterflies. So when we captured this image, we immediately thought of her. She is missed dearly and will remain in our hearts forever. RGB Color Data: Lens: Canon EF 200mm f/2.8L USM II (at f/2.8) Accessories: n/a Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: Starlight Xpress Lodestar on Orion 80ED Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 72 x 60sec @ ISO 800 (1hr. 12min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.83A – Calibrated, registered, Min-Max excluded averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja Date(s): August 8, 2010 Temperature(s): 87ºF (dropped to 81ºF) SQM reading (begin - end): 18.72 - clouds Hydrogen-alpha Data: Lens: Canon EF 200mm f/2.8L USM II (at f/2.8) Accessories: n/a Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: Starlight Xpress Lodestar on Orion 80ED Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 104 x 180sec @ ISO 1600 (5hr. 12min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.83A – Calibrated, registered, Min-Max excluded averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): August 6 &amp; 7, 2010 Temperature(s): 83ºF (dropped to 77ºF) both nights SQM reading (begin - end): n/a Location: Hendersonville, TN<br /><br />10 comments templec Mon, 16 Aug 2010 20:01:25 -0400 IC1318 - The Butterfly Nebula in HaRGB http://www.astrophotogallery.org/august-2010-hardnebula/p5972-ic1318the-butterfly-nebula-in-hargb.html <a href="http://www.astrophotogallery.org/august-2010-hardnebula/p5972-ic1318the-butterfly-nebula-in-hargb.html"><img title="IC1318_HaRGB_final2.jpg" border="0" src="http://www.astrophotogallery.org/data/875/thumbs/IC1318_HaRGB_final2.jpg" alt="IC1318_HaRGB_final2.jpg" /></a><br /><br />by: templec<br /><br />Description: This region of the sky is rich in HII nebulosity. The brightest star in the image, Sadr (Gamma Cygni) lies at the heart of the constellation Cygnus, although it is much closer to us than the nebulae. Just below Sadr is The Butterfly (IC 1318), which is not actually two separate nebulae, but a single cloud partially obscured by a dark dust lane, LDN 889. To the top right is The Crescent Nebula, NGC 6888. Several open clusters and dark nebulae are also visible in this wide field-of-view. This image is dedicated to the memory of our departed furry baby, Missy. One of her favorite things to do was to chase butterflies. So when we captured this image, we immediately thought of her. She is missed dearly and will remain in our hearts forever. RGB Color Data: Lens: Canon EF 200mm f/2.8L USM II (at f/2.8) Accessories: n/a Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: Starlight Xpress Lodestar on Orion 80ED Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 72 x 60sec @ ISO 800 (1hr. 12min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.83A – Calibrated, registered, Min-Max excluded averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja Date(s): August 8, 2010 Temperature(s): 87ºF (dropped to 81ºF) SQM reading (begin - end): 18.72 - clouds Hydrogen-alpha Data: Lens: Canon EF 200mm f/2.8L USM II (at f/2.8) Accessories: n/a Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: Starlight Xpress Lodestar on Orion 80ED Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 104 x 180sec @ ISO 1600 (5hr. 12min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.83A – Calibrated, registered, Min-Max excluded averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): August 6 &amp; 7, 2010 Temperature(s): 83ºF (dropped to 77ºF) both nights SQM reading (begin - end): n/a Location: Hendersonville, TN templec Mon, 16 Aug 2010 20:01:25 -0400 IC1318 - The Butterfly Nebula in HaRGB http://www.astrophotogallery.org/august-2010-hardnebula/p5973-ic1318the-butterfly-nebula-in-hargb.html <a href="http://www.astrophotogallery.org/august-2010-hardnebula/p5973-ic1318the-butterfly-nebula-in-hargb.html"><img title="IC1318_HaRGB_final2.jpg" border="0" src="http://www.astrophotogallery.org/data/875/thumbs/IC1318_HaRGB_final2.jpg" alt="IC1318_HaRGB_final2.jpg" /></a><br /><br />by: templec<br /><br />Description: This region of the sky is rich in HII nebulosity. The brightest star in the image, Sadr (Gamma Cygni) lies at the heart of the constellation Cygnus, although it is much closer to us than the nebulae. Just below Sadr is The Butterfly (IC 1318), which is not actually two separate nebulae, but a single cloud partially obscured by a dark dust lane, LDN 889. To the top right is The Crescent Nebula, NGC 6888. Several open clusters and dark nebulae are also visible in this wide field-of-view. This image is dedicated to the memory of our departed furry baby, Missy. One of her favorite things to do was to chase butterflies. So when we captured this image, we immediately thought of her. She is missed dearly and will remain in our hearts forever. RGB Color Data: Lens: Canon EF 200mm f/2.8L USM II (at f/2.8) Accessories: n/a Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: Starlight Xpress Lodestar on Orion 80ED Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 72 x 60sec @ ISO 800 (1hr. 12min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.83A – Calibrated, registered, Min-Max excluded averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; HLVG; Noise Ninja Date(s): August 8, 2010 Temperature(s): 87ºF (dropped to 81ºF) SQM reading (begin - end): 18.72 - clouds Hydrogen-alpha Data: Lens: Canon EF 200mm f/2.8L USM II (at f/2.8) Accessories: n/a Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: Starlight Xpress Lodestar on Orion 80ED Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 104 x 180sec @ ISO 1600 (5hr. 12min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.83A – Calibrated, registered, Min-Max excluded averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): August 6 &amp; 7, 2010 Temperature(s): 83ºF (dropped to 77ºF) both nights SQM reading (begin - end): n/a Location: Hendersonville, TN templec Mon, 16 Aug 2010 20:01:25 -0400 IC1318 - The Butterfly Nebula in H-alpha http://www.astrophotogallery.org/member-galleries/p5946-ic1318the-butterfly-nebula-in-h-alpha.html <a href="http://www.astrophotogallery.org/member-galleries/p5946-ic1318the-butterfly-nebula-in-h-alpha.html"><img title="IC1318_Ha_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/500/thumbs/IC1318_Ha_Final.jpg" alt="IC1318_Ha_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: This region of the sky is rich in HII nebulosity. The brightest star in the image, Sadr (Gamma Cygni) lies at the heart of the constellation Cygnus, although it is much closer to us than the nebulae. Just below Sadr is The Butterfly (IC 1318), which is not actually two separate nebulae, but a single cloud partially obscured by a dark dust lane, LDN 889. To the top right is The Crescent Nebula, NGC 6888. Several open clusters and dark nebulae are also visible in this wide field-of-view. Lens: Canon EF 200mm f/2.8L USM II (at f/2.8) Accessories: n/a Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: Starlight Xpress Lodestar on Orion 80ED Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 104 x 180sec @ ISO 1600 (5hr. 12min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.83A – Calibrated, registered, Min-Max excluded averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): August 6 &amp; 7, 2010 Temperature(s): 83ºF (dropped to 77ºF) both nights SQM reading (begin - end): n/a Location: Hendersonville, TN<br /><br />11 comments templec Sat, 14 Aug 2010 19:57:22 -0400 IC1318 - The Butterfly Nebula in H-alpha http://www.astrophotogallery.org/member-galleries/p5947-ic1318the-butterfly-nebula-in-h-alpha.html <a href="http://www.astrophotogallery.org/member-galleries/p5947-ic1318the-butterfly-nebula-in-h-alpha.html"><img title="IC1318_Ha_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/500/thumbs/IC1318_Ha_Final.jpg" alt="IC1318_Ha_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: This region of the sky is rich in HII nebulosity. The brightest star in the image, Sadr (Gamma Cygni) lies at the heart of the constellation Cygnus, although it is much closer to us than the nebulae. Just below Sadr is The Butterfly (IC 1318), which is not actually two separate nebulae, but a single cloud partially obscured by a dark dust lane, LDN 889. To the top right is The Crescent Nebula, NGC 6888. Several open clusters and dark nebulae are also visible in this wide field-of-view. Lens: Canon EF 200mm f/2.8L USM II (at f/2.8) Accessories: n/a Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: Starlight Xpress Lodestar on Orion 80ED Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 104 x 180sec @ ISO 1600 (5hr. 12min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.83A – Calibrated, registered, Min-Max excluded averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): August 6 &amp; 7, 2010 Temperature(s): 83ºF (dropped to 77ºF) both nights SQM reading (begin - end): n/a Location: Hendersonville, TN templec Sat, 14 Aug 2010 19:57:22 -0400 IC1318 - The Butterfly Nebula in H-alpha http://www.astrophotogallery.org/member-galleries/p5948-ic1318the-butterfly-nebula-in-h-alpha.html <a href="http://www.astrophotogallery.org/member-galleries/p5948-ic1318the-butterfly-nebula-in-h-alpha.html"><img title="IC1318_Ha_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/500/thumbs/IC1318_Ha_Final.jpg" alt="IC1318_Ha_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: This region of the sky is rich in HII nebulosity. The brightest star in the image, Sadr (Gamma Cygni) lies at the heart of the constellation Cygnus, although it is much closer to us than the nebulae. Just below Sadr is The Butterfly (IC 1318), which is not actually two separate nebulae, but a single cloud partially obscured by a dark dust lane, LDN 889. To the top right is The Crescent Nebula, NGC 6888. Several open clusters and dark nebulae are also visible in this wide field-of-view. Lens: Canon EF 200mm f/2.8L USM II (at f/2.8) Accessories: n/a Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: Starlight Xpress Lodestar on Orion 80ED Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 104 x 180sec @ ISO 1600 (5hr. 12min.) Acquisition: ImagesPlus 4.00 Camera Control Processing: ImagesPlus 3.83A – Calibrated, registered, Min-Max excluded averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): August 6 &amp; 7, 2010 Temperature(s): 83ºF (dropped to 77ºF) both nights SQM reading (begin - end): n/a Location: Hendersonville, TN templec Sat, 14 Aug 2010 19:57:22 -0400 NGC6888 - Crescent Nebula in HaRGB http://www.astrophotogallery.org/july-2010-mediumnebula/p5777-ngc6888crescent-nebula-in-hargb.html <a href="http://www.astrophotogallery.org/july-2010-mediumnebula/p5777-ngc6888crescent-nebula-in-hargb.html"><img title="NGC6888_HaRGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/863/thumbs/NGC6888_HaRGB_Final.jpg" alt="NGC6888_HaRGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: The Crescent Nebula (NGC6888, Caldwell 27, LBN 203), also known as &quot;Van Gogh's Ear&quot; is a magnitude 7.40 emission nebula in the constellation Cygnus (The Swan). It is formed by the violently fast stellar winds emanating from a Wolf-Rayet star (WR 136, HD192163) colliding with the slower gases that were shed by the same star many thousands of years ago when it was a red giant. The gaseous shell is approximately 25 light-years across and 5,000 light-years distant. It is predicted that the central Wolf-Rayet star will eventually explode into a supernova in approximately 100,000 years. RGB Color Data: Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: best 57/66 x 180s @ ISO 800 (2hr. 51min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja Date(s): June 13, 2010 Temperature(s): 82ºF (dropped to 78ºF) SQM reading (begin - end): 19.34 - 19.32 Moon data: n/a Hydrogen-alpha Data: Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 25 x 900s @ ISO 1600 (6hr. 15min.) Acquisition: ImagesPlus 4.00 beta 1A(N1) beta 2(N2) Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): July 3 &amp; 7, 2010 Temperature(s): N1:79ºF (dropped to 74ºF); N2:82ºF (dropped to 78ºF) Moon data: N1: Last Quarter - 53%(64º a/s); N2: n/a Location: Hendersonville, TN<br /><br />10 comments templec Tue, 13 Jul 2010 12:55:13 -0400 NGC6888 - Crescent Nebula in HaRGB http://www.astrophotogallery.org/july-2010-mediumnebula/p5778-ngc6888crescent-nebula-in-hargb.html <a href="http://www.astrophotogallery.org/july-2010-mediumnebula/p5778-ngc6888crescent-nebula-in-hargb.html"><img title="NGC6888_HaRGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/863/thumbs/NGC6888_HaRGB_Final.jpg" alt="NGC6888_HaRGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: The Crescent Nebula (NGC6888, Caldwell 27, LBN 203), also known as &quot;Van Gogh's Ear&quot; is a magnitude 7.40 emission nebula in the constellation Cygnus (The Swan). It is formed by the violently fast stellar winds emanating from a Wolf-Rayet star (WR 136, HD192163) colliding with the slower gases that were shed by the same star many thousands of years ago when it was a red giant. The gaseous shell is approximately 25 light-years across and 5,000 light-years distant. It is predicted that the central Wolf-Rayet star will eventually explode into a supernova in approximately 100,000 years. RGB Color Data: Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: best 57/66 x 180s @ ISO 800 (2hr. 51min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja Date(s): June 13, 2010 Temperature(s): 82ºF (dropped to 78ºF) SQM reading (begin - end): 19.34 - 19.32 Moon data: n/a Hydrogen-alpha Data: Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 25 x 900s @ ISO 1600 (6hr. 15min.) Acquisition: ImagesPlus 4.00 beta 1A(N1) beta 2(N2) Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): July 3 &amp; 7, 2010 Temperature(s): N1:79ºF (dropped to 74ºF); N2:82ºF (dropped to 78ºF) Moon data: N1: Last Quarter - 53%(64º a/s); N2: n/a Location: Hendersonville, TN<br /><br />1 comment templec Tue, 13 Jul 2010 12:55:13 -0400 NGC6888 - Crescent Nebula in HaRGB http://www.astrophotogallery.org/july-2010-mediumnebula/p5779-ngc6888crescent-nebula-in-hargb.html <a href="http://www.astrophotogallery.org/july-2010-mediumnebula/p5779-ngc6888crescent-nebula-in-hargb.html"><img title="NGC6888_HaRGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/863/thumbs/NGC6888_HaRGB_Final.jpg" alt="NGC6888_HaRGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: The Crescent Nebula (NGC6888, Caldwell 27, LBN 203), also known as &quot;Van Gogh's Ear&quot; is a magnitude 7.40 emission nebula in the constellation Cygnus (The Swan). It is formed by the violently fast stellar winds emanating from a Wolf-Rayet star (WR 136, HD192163) colliding with the slower gases that were shed by the same star many thousands of years ago when it was a red giant. The gaseous shell is approximately 25 light-years across and 5,000 light-years distant. It is predicted that the central Wolf-Rayet star will eventually explode into a supernova in approximately 100,000 years. RGB Color Data: Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: best 57/66 x 180s @ ISO 800 (2hr. 51min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja Date(s): June 13, 2010 Temperature(s): 82ºF (dropped to 78ºF) SQM reading (begin - end): 19.34 - 19.32 Moon data: n/a Hydrogen-alpha Data: Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 25 x 900s @ ISO 1600 (6hr. 15min.) Acquisition: ImagesPlus 4.00 beta 1A(N1) beta 2(N2) Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): July 3 &amp; 7, 2010 Temperature(s): N1:79ºF (dropped to 74ºF); N2:82ºF (dropped to 78ºF) Moon data: N1: Last Quarter - 53%(64º a/s); N2: n/a Location: Hendersonville, TN templec Tue, 13 Jul 2010 12:55:13 -0400 NGC6888 - Crescent Nebula in HaRGB http://www.astrophotogallery.org/july-2010-mediumnebula/p5780-ngc6888crescent-nebula-in-hargb.html <a href="http://www.astrophotogallery.org/july-2010-mediumnebula/p5780-ngc6888crescent-nebula-in-hargb.html"><img title="NGC6888_HaRGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/863/thumbs/NGC6888_HaRGB_Final.jpg" alt="NGC6888_HaRGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: The Crescent Nebula (NGC6888, Caldwell 27, LBN 203), also known as &quot;Van Gogh's Ear&quot; is a magnitude 7.40 emission nebula in the constellation Cygnus (The Swan). It is formed by the violently fast stellar winds emanating from a Wolf-Rayet star (WR 136, HD192163) colliding with the slower gases that were shed by the same star many thousands of years ago when it was a red giant. The gaseous shell is approximately 25 light-years across and 5,000 light-years distant. It is predicted that the central Wolf-Rayet star will eventually explode into a supernova in approximately 100,000 years. RGB Color Data: Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: best 57/66 x 180s @ ISO 800 (2hr. 51min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja Date(s): June 13, 2010 Temperature(s): 82ºF (dropped to 78ºF) SQM reading (begin - end): 19.34 - 19.32 Moon data: n/a Hydrogen-alpha Data: Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 25 x 900s @ ISO 1600 (6hr. 15min.) Acquisition: ImagesPlus 4.00 beta 1A(N1) beta 2(N2) Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): July 3 &amp; 7, 2010 Temperature(s): N1:79ºF (dropped to 74ºF); N2:82ºF (dropped to 78ºF) Moon data: N1: Last Quarter - 53%(64º a/s); N2: n/a Location: Hendersonville, TN templec Tue, 13 Jul 2010 12:55:13 -0400 NGC6888 - The Crescent Nebula in H-alpha http://www.astrophotogallery.org/h-alpha-images/p5742-ngc6888the-crescent-nebula-in-h-alpha.html <a href="http://www.astrophotogallery.org/h-alpha-images/p5742-ngc6888the-crescent-nebula-in-h-alpha.html"><img title="NGC6888_Ha_Final2.jpg" border="0" src="http://www.astrophotogallery.org/data/805/thumbs/NGC6888_Ha_Final2.jpg" alt="NGC6888_Ha_Final2.jpg" /></a><br /><br />by: templec<br /><br />Description: The Crescent Nebula (NGC6888, Caldwell 27, LBN 203), also known as &amp;quot;Van Gogh's Ear&amp;quot; is a magnitude 7.40 emission nebula in the constellation Cygnus (The Swan). It is formed by the violently fast stellar winds emanating from a Wolf-Rayet star (WR 136, HD192163) colliding with the slower gases that were shed by the same star many thousands of years ago when it was a red giant. The gaseous shell is approximately 25 light-years across and 5,000 light-years distant. It is predicted that the central Wolf-Rayet star will eventually explode into a supernova in approximately 100,000 years. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 25 x 900s @ ISO 1600 (6hr. 15min.) Acquisition: ImagesPlus 4.00 beta 1A(N1) beta 2(N2) Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): July 3 &amp; 7, 2010 Temperature(s): N1:79ºF (dropped to 74ºF); N2:82ºF (dropped to 78ºF) Moon data: N1: Last Quarter - 53%(64º a/s); N2: n/a Location: Hendersonville, TN<br /><br />4 comments templec Fri, 09 Jul 2010 11:42:52 -0400 NGC6888 - The Crescent Nebula in H-alpha http://www.astrophotogallery.org/h-alpha-images/p5743-ngc6888the-crescent-nebula-in-h-alpha.html <a href="http://www.astrophotogallery.org/h-alpha-images/p5743-ngc6888the-crescent-nebula-in-h-alpha.html"><img title="NGC6888_Ha_Final2.jpg" border="0" src="http://www.astrophotogallery.org/data/805/thumbs/NGC6888_Ha_Final2.jpg" alt="NGC6888_Ha_Final2.jpg" /></a><br /><br />by: templec<br /><br />Description: The Crescent Nebula (NGC6888, Caldwell 27, LBN 203), also known as &amp;quot;Van Gogh's Ear&amp;quot; is a magnitude 7.40 emission nebula in the constellation Cygnus (The Swan). It is formed by the violently fast stellar winds emanating from a Wolf-Rayet star (WR 136, HD192163) colliding with the slower gases that were shed by the same star many thousands of years ago when it was a red giant. The gaseous shell is approximately 25 light-years across and 5,000 light-years distant. It is predicted that the central Wolf-Rayet star will eventually explode into a supernova in approximately 100,000 years. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 25 x 900s @ ISO 1600 (6hr. 15min.) Acquisition: ImagesPlus 4.00 beta 1A(N1) beta 2(N2) Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): July 3 &amp; 7, 2010 Temperature(s): N1:79ºF (dropped to 74ºF); N2:82ºF (dropped to 78ºF) Moon data: N1: Last Quarter - 53%(64º a/s); N2: n/a Location: Hendersonville, TN templec Fri, 09 Jul 2010 11:42:52 -0400 NGC6888 - The Crescent Nebula in H-alpha http://www.astrophotogallery.org/h-alpha-images/p5744-ngc6888the-crescent-nebula-in-h-alpha.html <a href="http://www.astrophotogallery.org/h-alpha-images/p5744-ngc6888the-crescent-nebula-in-h-alpha.html"><img title="NGC6888_Ha_Final2.jpg" border="0" src="http://www.astrophotogallery.org/data/805/thumbs/NGC6888_Ha_Final2.jpg" alt="NGC6888_Ha_Final2.jpg" /></a><br /><br />by: templec<br /><br />Description: The Crescent Nebula (NGC6888, Caldwell 27, LBN 203), also known as &amp;quot;Van Gogh's Ear&amp;quot; is a magnitude 7.40 emission nebula in the constellation Cygnus (The Swan). It is formed by the violently fast stellar winds emanating from a Wolf-Rayet star (WR 136, HD192163) colliding with the slower gases that were shed by the same star many thousands of years ago when it was a red giant. The gaseous shell is approximately 25 light-years across and 5,000 light-years distant. It is predicted that the central Wolf-Rayet star will eventually explode into a supernova in approximately 100,000 years. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik 6nm H-Alpha EOS Clip Exposure: 25 x 900s @ ISO 1600 (6hr. 15min.) Acquisition: ImagesPlus 4.00 beta 1A(N1) beta 2(N2) Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Noise Ninja Date(s): July 3 &amp; 7, 2010 Temperature(s): N1:79ºF (dropped to 74ºF); N2:82ºF (dropped to 78ºF) Moon data: N1: Last Quarter - 53%(64º a/s); N2: n/a Location: Hendersonville, TN templec Fri, 09 Jul 2010 11:42:52 -0400 M8 - The Lagoon Nebula http://www.astrophotogallery.org/june-2010-mediummessier-object/p5665-m8the-lagoon-nebula.html <a href="http://www.astrophotogallery.org/june-2010-mediummessier-object/p5665-m8the-lagoon-nebula.html"><img title="M8_RGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/855/thumbs/M8_RGB_Final.jpg" alt="M8_RGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: Despite the horrible heat, we got out and shot M8 over a couple of nights last week. The first night, we started shooting at almost 11:00pm and the temp was 82F. By the time the clouds rolled-in at close to 1:00am, it had dropped to 79F. The conditions were similar on the 2nd night. I checked the internal camera temperature (in the EXIF data) on a couple of the subs and it was actually over 100F!! Due to M8's low altitude, we had to keep the subs short anyway, and it actually turned out to be a good thing. It's easy to blow out the central portion of the nebula if you aren't careful. We also managed to pick up the reflection nebula, IC4678, to the lower right. The Lagoon Nebula (M8, NGC6523, Sh2-25, LBN25) is a huge emission nebula (HII region) in the constellation Sagittarius. It was discovered in 1747 by Guillaume Le Gentil. At a distance of approximately 4,000 - 6,000 light-years, and a size of nearly 90 x 40 arc minutes, it is visible to the unaided eye from fairly dark skies. Scattered throughout the nebula are several dark Bok Globules. The most prominent ones were cataloged by E. E. Barnard as B88, B89 and B296. Visible to the lower right in this image is reflection nebula IC4678 and the open cluster just to the right of center is NGC6530. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 142 x 90s @ ISO 800 (3hr. 33min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Deep Sky Colors HLVG; Noise Ninja Date(s): June 18 &amp; 19, 2010 Temperature(s): N1:82ºF (dropped to 79ºF); N2:82ºF (dropped to 78ºF) SQM reading (begin - end): N1:18.78 - clouds; N2:19.13 - 19.48 Moon data: N1: First Quarter - 49%(93º a/s); N2: Waxing Gibbous - 61%(79º a/s) Location: Hendersonville, TN<br /><br />12 comments templec Wed, 23 Jun 2010 15:25:46 -0400 M8 - The Lagoon Nebula http://www.astrophotogallery.org/june-2010-mediummessier-object/p5666-m8the-lagoon-nebula.html <a href="http://www.astrophotogallery.org/june-2010-mediummessier-object/p5666-m8the-lagoon-nebula.html"><img title="M8_RGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/855/thumbs/M8_RGB_Final.jpg" alt="M8_RGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: Despite the horrible heat, we got out and shot M8 over a couple of nights last week. The first night, we started shooting at almost 11:00pm and the temp was 82F. By the time the clouds rolled-in at close to 1:00am, it had dropped to 79F. The conditions were similar on the 2nd night. I checked the internal camera temperature (in the EXIF data) on a couple of the subs and it was actually over 100F!! Due to M8's low altitude, we had to keep the subs short anyway, and it actually turned out to be a good thing. It's easy to blow out the central portion of the nebula if you aren't careful. We also managed to pick up the reflection nebula, IC4678, to the lower right. The Lagoon Nebula (M8, NGC6523, Sh2-25, LBN25) is a huge emission nebula (HII region) in the constellation Sagittarius. It was discovered in 1747 by Guillaume Le Gentil. At a distance of approximately 4,000 - 6,000 light-years, and a size of nearly 90 x 40 arc minutes, it is visible to the unaided eye from fairly dark skies. Scattered throughout the nebula are several dark Bok Globules. The most prominent ones were cataloged by E. E. Barnard as B88, B89 and B296. Visible to the lower right in this image is reflection nebula IC4678 and the open cluster just to the right of center is NGC6530. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 142 x 90s @ ISO 800 (3hr. 33min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Deep Sky Colors HLVG; Noise Ninja Date(s): June 18 &amp; 19, 2010 Temperature(s): N1:82ºF (dropped to 79ºF); N2:82ºF (dropped to 78ºF) SQM reading (begin - end): N1:18.78 - clouds; N2:19.13 - 19.48 Moon data: N1: First Quarter - 49%(93º a/s); N2: Waxing Gibbous - 61%(79º a/s) Location: Hendersonville, TN templec Wed, 23 Jun 2010 15:25:46 -0400 M8 (NGC6523) - The Lagoon Nebula http://www.astrophotogallery.org/june-2010-mediummessier-object/p5667-m828ngc6523-29the-lagoon-nebula.html <a href="http://www.astrophotogallery.org/june-2010-mediummessier-object/p5667-m828ngc6523-29the-lagoon-nebula.html"><img title="M8_RGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/855/thumbs/M8_RGB_Final.jpg" alt="M8_RGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: Despite the horrible heat, we got out and shot M8 over a couple of nights last week. The first night, we started shooting at almost 11:00pm and the temp was 82F. By the time the clouds rolled-in at close to 1:00am, it had dropped to 79F. The conditions were similar on the 2nd night. I checked the internal camera temperature (in the EXIF data) on a couple of the subs and it was actually over 100F!! Due to M8's low altitude, we had to keep the subs short anyway, and it actually turned out to be a good thing. It's easy to blow out the central portion of the nebula if you aren't careful. We also managed to pick up the reflection nebula, IC4678, to the lower right. The Lagoon Nebula (M8, NGC6523, Sh2-25, LBN25) is a huge emission nebula (HII region) in the constellation Sagittarius. It was discovered in 1747 by Guillaume Le Gentil. At a distance of approximately 4,000 - 6,000 light-years, and a size of nearly 90 x 40 arc minutes, it is visible to the unaided eye from fairly dark skies. Scattered throughout the nebula are several dark Bok Globules. The most prominent ones were cataloged by E. E. Barnard as B88, B89 and B296. Visible to the lower right in this image is reflection nebula IC4678 and the open cluster just to the right of center is NGC6530. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 142 x 90s @ ISO 800 (3hr. 33min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Deep Sky Colors HLVG; Noise Ninja Date(s): June 18 &amp; 19, 2010 Temperature(s): N1:82ºF (dropped to 79ºF); N2:82ºF (dropped to 78ºF) SQM reading (begin - end): N1:18.78 - clouds; N2:19.13 - 19.48 Moon data: N1: First Quarter - 49%(93º a/s); N2: Waxing Gibbous - 61%(79º a/s) Location: Hendersonville, TN templec Wed, 23 Jun 2010 15:25:46 -0400 M8 (Sh2-25) - The Lagoon Nebula http://www.astrophotogallery.org/june-2010-mediummessier-object/p5668-m828sh2-25-29the-lagoon-nebula.html <a href="http://www.astrophotogallery.org/june-2010-mediummessier-object/p5668-m828sh2-25-29the-lagoon-nebula.html"><img title="M8_RGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/855/thumbs/M8_RGB_Final.jpg" alt="M8_RGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: Despite the horrible heat, we got out and shot M8 over a couple of nights last week. The first night, we started shooting at almost 11:00pm and the temp was 82F. By the time the clouds rolled-in at close to 1:00am, it had dropped to 79F. The conditions were similar on the 2nd night. I checked the internal camera temperature (in the EXIF data) on a couple of the subs and it was actually over 100F!! Due to M8's low altitude, we had to keep the subs short anyway, and it actually turned out to be a good thing. It's easy to blow out the central portion of the nebula if you aren't careful. We also managed to pick up the reflection nebula, IC4678, to the lower right. The Lagoon Nebula (M8, NGC6523, Sh2-25, LBN25) is a huge emission nebula (HII region) in the constellation Sagittarius. It was discovered in 1747 by Guillaume Le Gentil. At a distance of approximately 4,000 - 6,000 light-years, and a size of nearly 90 x 40 arc minutes, it is visible to the unaided eye from fairly dark skies. Scattered throughout the nebula are several dark Bok Globules. The most prominent ones were cataloged by E. E. Barnard as B88, B89 and B296. Visible to the lower right in this image is reflection nebula IC4678 and the open cluster just to the right of center is NGC6530. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 142 x 90s @ ISO 800 (3hr. 33min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Deep Sky Colors HLVG; Noise Ninja Date(s): June 18 &amp; 19, 2010 Temperature(s): N1:82ºF (dropped to 79ºF); N2:82ºF (dropped to 78ºF) SQM reading (begin - end): N1:18.78 - clouds; N2:19.13 - 19.48 Moon data: N1: First Quarter - 49%(93º a/s); N2: Waxing Gibbous - 61%(79º a/s) Location: Hendersonville, TN templec Wed, 23 Jun 2010 15:25:46 -0400 M8 - The Lagoon Nebula http://www.astrophotogallery.org/june-2010-mediummessier-object/p5669-m8the-lagoon-nebula.html <a href="http://www.astrophotogallery.org/june-2010-mediummessier-object/p5669-m8the-lagoon-nebula.html"><img title="M8_RGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/855/thumbs/M8_RGB_Final.jpg" alt="M8_RGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: Despite the horrible heat, we got out and shot M8 over a couple of nights last week. The first night, we started shooting at almost 11:00pm and the temp was 82F. By the time the clouds rolled-in at close to 1:00am, it had dropped to 79F. The conditions were similar on the 2nd night. I checked the internal camera temperature (in the EXIF data) on a couple of the subs and it was actually over 100F!! Due to M8's low altitude, we had to keep the subs short anyway, and it actually turned out to be a good thing. It's easy to blow out the central portion of the nebula if you aren't careful. We also managed to pick up the reflection nebula, IC4678, to the lower right. The Lagoon Nebula (M8, NGC6523, Sh2-25, LBN25) is a huge emission nebula (HII region) in the constellation Sagittarius. It was discovered in 1747 by Guillaume Le Gentil. At a distance of approximately 4,000 - 6,000 light-years, and a size of nearly 90 x 40 arc minutes, it is visible to the unaided eye from fairly dark skies. Scattered throughout the nebula are several dark Bok Globules. The most prominent ones were cataloged by E. E. Barnard as B88, B89 and B296. Visible to the lower right in this image is reflection nebula IC4678 and the open cluster just to the right of center is NGC6530. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 142 x 90s @ ISO 800 (3hr. 33min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Deep Sky Colors HLVG; Noise Ninja Date(s): June 18 &amp; 19, 2010 Temperature(s): N1:82ºF (dropped to 79ºF); N2:82ºF (dropped to 78ºF) SQM reading (begin - end): N1:18.78 - clouds; N2:19.13 - 19.48 Moon data: N1: First Quarter - 49%(93º a/s); N2: Waxing Gibbous - 61%(79º a/s) Location: Hendersonville, TN templec Wed, 23 Jun 2010 15:25:46 -0400 NGC6888 - The Crescent Nebula http://www.astrophotogallery.org/nebulae/p5617-ngc6888the-crescent-nebula.html <a href="http://www.astrophotogallery.org/nebulae/p5617-ngc6888the-crescent-nebula.html"><img title="NGC6888_RGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/629/thumbs/NGC6888_RGB_Final.jpg" alt="NGC6888_RGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: The Crescent Nebula (NGC6888, Caldwell 27, LBN 203 ) is a magnitude 7.40 emission nebula in the constellation Cygnus (The Swan). It is formed by the violently fast stellar winds emanating from a Wolf-Rayet star (WR 136, HD192163) colliding with the slower gases that were shed by the same star many thousands of years ago when it was a red giant. The gaseous shell is approximately 25 light-years across and 5,000 light-years distant. It is predicted that the central Wolf-Rayet star will eventually explode into a supernova in approximately 100,000 years. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: best 57/66 x 180s @ ISO 800 (2hr. 51min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja Date(s): June 13, 2010 Temperature(s): 82ºF (dropped to 78ºF) SQM reading (begin - end): 19.34 - 19.32 Moon data: n/a Location: Hendersonville, TN<br /><br />9 comments templec Thu, 17 Jun 2010 09:25:58 -0400 NGC6888 - The Crescent Nebula http://www.astrophotogallery.org/nebulae/p5618-ngc6888the-crescent-nebula.html <a href="http://www.astrophotogallery.org/nebulae/p5618-ngc6888the-crescent-nebula.html"><img title="NGC6888_RGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/629/thumbs/NGC6888_RGB_Final.jpg" alt="NGC6888_RGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: The Crescent Nebula (NGC6888, Caldwell 27, LBN 203 ) is a magnitude 7.40 emission nebula in the constellation Cygnus (The Swan). It is formed by the violently fast stellar winds emanating from a Wolf-Rayet star (WR 136, HD192163) colliding with the slower gases that were shed by the same star many thousands of years ago when it was a red giant. The gaseous shell is approximately 25 light-years across and 5,000 light-years distant. It is predicted that the central Wolf-Rayet star will eventually explode into a supernova in approximately 100,000 years. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: best 57/66 x 180s @ ISO 800 (2hr. 51min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja Date(s): June 13, 2010 Temperature(s): 82ºF (dropped to 78ºF) SQM reading (begin - end): 19.34 - 19.32 Moon data: n/a Location: Hendersonville, TN templec Thu, 17 Jun 2010 09:25:58 -0400 NGC6888 - The Crescent Nebula http://www.astrophotogallery.org/nebulae/p5619-ngc6888the-crescent-nebula.html <a href="http://www.astrophotogallery.org/nebulae/p5619-ngc6888the-crescent-nebula.html"><img title="NGC6888_RGB_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/629/thumbs/NGC6888_RGB_Final.jpg" alt="NGC6888_RGB_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: The Crescent Nebula (NGC6888, Caldwell 27, LBN 203 ) is a magnitude 7.40 emission nebula in the constellation Cygnus (The Swan). It is formed by the violently fast stellar winds emanating from a Wolf-Rayet star (WR 136, HD192163) colliding with the slower gases that were shed by the same star many thousands of years ago when it was a red giant. The gaseous shell is approximately 25 light-years across and 5,000 light-years distant. It is predicted that the central Wolf-Rayet star will eventually explode into a supernova in approximately 100,000 years. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: best 57/66 x 180s @ ISO 800 (2hr. 51min.) Acquisition: ImagesPlus 4.00 beta 1 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja Date(s): June 13, 2010 Temperature(s): 82ºF (dropped to 78ºF) SQM reading (begin - end): 19.34 - 19.32 Moon data: n/a Location: Hendersonville, TN templec Thu, 17 Jun 2010 09:25:58 -0400 M13 - The Great Globular Cluster in Hercules http://www.astrophotogallery.org/may-2010-mediumglobular-cluster/p5518-m13the-great-globular-cluster-in-hercules.html <a href="http://www.astrophotogallery.org/may-2010-mediumglobular-cluster/p5518-m13the-great-globular-cluster-in-hercules.html"><img title="M13_AT8IN_Finalv2.jpg" border="0" src="http://www.astrophotogallery.org/data/849/thumbs/M13_AT8IN_Finalv2.jpg" alt="M13_AT8IN_Finalv2.jpg" /></a><br /><br />by: templec<br /><br />Description: This massive conglomeration of stars was discovered by Edmund Halley in 1714 and consequently cataloged by Charles Messier on June 1, 1764. With a collective apparent magnitude of 5.80 and a size of roughly 23 arc-minutes, this globular cluster is easily visible with a small telescope. In this image, 2 galaxies are also visible. To the lower right of the cluster is the 12th magnitude edge-on spiral NGC6207. Between M13 and NGC6207 is the very tiny 15th magnitude IC4617. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: IDAS-LPS EOS Clip (N1&amp;N2) Astronomik CLS-CCD EOS Clip (N3) Exposure: 88 x 180s @ ISO 400 (4hr. 24min.); 60 x 10s @ ISO 400 + 30 x 30s @ ISO 400 + 30 x 60s @ ISO 400 (for the core) Acquisition: ImagesPlus 3.83 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): May 22, 23 &amp; 24 2010 Temperature(s): N1:72ºF (dropped to 69ºF); N1:82ºF (dropped to 76ºF); N3:78ºF (dropped to 74ºF) SQM reading (begin - end): N1:18.71 - 18.82; N2:18.34 - 18.66; N3:17.96 - 18.04 Moon data: Waxing Gibbous - N1: 74%(79º a/s); N2: 83%(73º a/s); N3: 91%(68º a/s) Location: Hendersonville, TN<br /><br />7 comments templec Fri, 28 May 2010 11:18:20 -0400 M13 - The Great Globular Cluster in Hercules http://www.astrophotogallery.org/may-2010-mediumglobular-cluster/p5519-m13the-great-globular-cluster-in-hercules.html <a href="http://www.astrophotogallery.org/may-2010-mediumglobular-cluster/p5519-m13the-great-globular-cluster-in-hercules.html"><img title="M13_AT8IN_Finalv2.jpg" border="0" src="http://www.astrophotogallery.org/data/849/thumbs/M13_AT8IN_Finalv2.jpg" alt="M13_AT8IN_Finalv2.jpg" /></a><br /><br />by: templec<br /><br />Description: This massive conglomeration of stars was discovered by Edmund Halley in 1714 and consequently cataloged by Charles Messier on June 1, 1764. With a collective apparent magnitude of 5.80 and a size of roughly 23 arc-minutes, this globular cluster is easily visible with a small telescope. In this image, 2 galaxies are also visible. To the lower right of the cluster is the 12th magnitude edge-on spiral NGC6207. Between M13 and NGC6207 is the very tiny 15th magnitude IC4617. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: IDAS-LPS EOS Clip (N1&amp;N2) Astronomik CLS-CCD EOS Clip (N3) Exposure: 88 x 180s @ ISO 400 (4hr. 24min.); 60 x 10s @ ISO 400 + 30 x 30s @ ISO 400 + 30 x 60s @ ISO 400 (for the core) Acquisition: ImagesPlus 3.83 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): May 22, 23 &amp; 24 2010 Temperature(s): N1:72ºF (dropped to 69ºF); N1:82ºF (dropped to 76ºF); N3:78ºF (dropped to 74ºF) SQM reading (begin - end): N1:18.71 - 18.82; N2:18.34 - 18.66; N3:17.96 - 18.04 Moon data: Waxing Gibbous - N1: 74%(79º a/s); N2: 83%(73º a/s); N3: 91%(68º a/s) Location: Hendersonville, TN templec Fri, 28 May 2010 11:18:20 -0400 M13 - The Great Globular Cluster in Hercules http://www.astrophotogallery.org/may-2010-mediumglobular-cluster/p5520-m13the-great-globular-cluster-in-hercules.html <a href="http://www.astrophotogallery.org/may-2010-mediumglobular-cluster/p5520-m13the-great-globular-cluster-in-hercules.html"><img title="M13_AT8IN_Finalv2.jpg" border="0" src="http://www.astrophotogallery.org/data/849/thumbs/M13_AT8IN_Finalv2.jpg" alt="M13_AT8IN_Finalv2.jpg" /></a><br /><br />by: templec<br /><br />Description: This massive conglomeration of stars was discovered by Edmund Halley in 1714 and consequently cataloged by Charles Messier on June 1, 1764. With a collective apparent magnitude of 5.80 and a size of roughly 23 arc-minutes, this globular cluster is easily visible with a small telescope. In this image, 2 galaxies are also visible. To the lower right of the cluster is the 12th magnitude edge-on spiral NGC6207. Between M13 and NGC6207 is the very tiny 15th magnitude IC4617. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: IDAS-LPS EOS Clip (N1&amp;N2) Astronomik CLS-CCD EOS Clip (N3) Exposure: 88 x 180s @ ISO 400 (4hr. 24min.); 60 x 10s @ ISO 400 + 30 x 30s @ ISO 400 + 30 x 60s @ ISO 400 (for the core) Acquisition: ImagesPlus 3.83 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): May 22, 23 &amp; 24 2010 Temperature(s): N1:72ºF (dropped to 69ºF); N1:82ºF (dropped to 76ºF); N3:78ºF (dropped to 74ºF) SQM reading (begin - end): N1:18.71 - 18.82; N2:18.34 - 18.66; N3:17.96 - 18.04 Moon data: Waxing Gibbous - N1: 74%(79º a/s); N2: 83%(73º a/s); N3: 91%(68º a/s) Location: Hendersonville, TN templec Fri, 28 May 2010 11:18:20 -0400 M102 (NGC5866) - The Spindle Galaxy http://www.astrophotogallery.org/galaxies/p5438-m10228ngc5866-29the-spindle-galaxy.html <a href="http://www.astrophotogallery.org/galaxies/p5438-m10228ngc5866-29the-spindle-galaxy.html"><img title="M102_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/M102_Final.jpg" alt="M102_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: This galaxy, NGC5866, is a bit of a mystery. There is no galaxy at the coordinates that Charles Messier logged as M102 in 1781. It is likely that he duplicated his observation of M101. The galaxy in this image is the closest to Messier's coordinates and one of the likely candidates to be called M102. NGC5866 is either a lenticular or a spiral galaxy in the constellation Draco. Because of it's edge-on appearance, it is difficult to definitively tell if it is lenticular. The prominent dust disk would suggest it is not, as such a lane would be very unusual in a lenticular galaxy. It has an apparent magnitude of 10.70 and is approximately 50 million light-years distant. Telescope: Celestron C8 Schmidt-Cassegrain Accessories: Celestron f/6.3 reducer/corrector; Dew control by Dew Buster® Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 39 x 480sec @ ISO 800 (5hr. 12min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): May 3, 5 &amp; 6, 2010 Temperature(s): N1:65ºF; N2:77ºF (dropped to 70ºF); N3:77ºF (dropped to 72ºF) SQM reading (begin - end): N1:?; N2:19.13 - 19.26; N3:18.97 - 19.22 Moon data: n/a Location: Hendersonville, TN<br /><br />4 comments templec Tue, 11 May 2010 15:03:33 -0400 M102 (NGC5866) - The Spindle Galaxy http://www.astrophotogallery.org/galaxies/p5439-m10228ngc5866-29the-spindle-galaxy.html <a href="http://www.astrophotogallery.org/galaxies/p5439-m10228ngc5866-29the-spindle-galaxy.html"><img title="M102_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/M102_Final.jpg" alt="M102_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: This galaxy, NGC5866, is a bit of a mystery. There is no galaxy at the coordinates that Charles Messier logged as M102 in 1781. It is likely that he duplicated his observation of M101. The galaxy in this image is the closest to Messier's coordinates and one of the likely candidates to be called M102. NGC5866 is either a lenticular or a spiral galaxy in the constellation Draco. Because of it's edge-on appearance, it is difficult to definitively tell if it is lenticular. The prominent dust disk would suggest it is not, as such a lane would be very unusual in a lenticular galaxy. It has an apparent magnitude of 10.70 and is approximately 50 million light-years distant. Telescope: Celestron C8 Schmidt-Cassegrain Accessories: Celestron f/6.3 reducer/corrector; Dew control by Dew Buster® Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 39 x 480sec @ ISO 800 (5hr. 12min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): May 3, 5 &amp; 6, 2010 Temperature(s): N1:65ºF; N2:77ºF (dropped to 70ºF); N3:77ºF (dropped to 72ºF) SQM reading (begin - end): N1:?; N2:19.13 - 19.26; N3:18.97 - 19.22 Moon data: n/a Location: Hendersonville, TN templec Tue, 11 May 2010 15:03:33 -0400 M102 (NGC5866) - The Spindle Galaxy http://www.astrophotogallery.org/galaxies/p5440-m10228ngc5866-29the-spindle-galaxy.html <a href="http://www.astrophotogallery.org/galaxies/p5440-m10228ngc5866-29the-spindle-galaxy.html"><img title="M102_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/M102_Final.jpg" alt="M102_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: This galaxy, NGC5866, is a bit of a mystery. There is no galaxy at the coordinates that Charles Messier logged as M102 in 1781. It is likely that he duplicated his observation of M101. The galaxy in this image is the closest to Messier's coordinates and one of the likely candidates to be called M102. NGC5866 is either a lenticular or a spiral galaxy in the constellation Draco. Because of it's edge-on appearance, it is difficult to definitively tell if it is lenticular. The prominent dust disk would suggest it is not, as such a lane would be very unusual in a lenticular galaxy. It has an apparent magnitude of 10.70 and is approximately 50 million light-years distant. Telescope: Celestron C8 Schmidt-Cassegrain Accessories: Celestron f/6.3 reducer/corrector; Dew control by Dew Buster® Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 39 x 480sec @ ISO 800 (5hr. 12min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): May 3, 5 &amp; 6, 2010 Temperature(s): N1:65ºF; N2:77ºF (dropped to 70ºF); N3:77ºF (dropped to 72ºF) SQM reading (begin - end): N1:?; N2:19.13 - 19.26; N3:18.97 - 19.22 Moon data: n/a Location: Hendersonville, TN templec Tue, 11 May 2010 15:03:33 -0400 M102 (NGC5866) - The Spindle Galaxy http://www.astrophotogallery.org/galaxies/p5509-m10228ngc5866-29the-spindle-galaxy.html <a href="http://www.astrophotogallery.org/galaxies/p5509-m10228ngc5866-29the-spindle-galaxy.html"><img title="M102_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/M102_Final.jpg" alt="M102_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: This galaxy, NGC5866, is a bit of a mystery. There is no galaxy at the coordinates that Charles Messier logged as M102 in 1781. It is likely that he duplicated his observation of M101. The galaxy in this image is the closest to Messier's coordinates and one of the likely candidates to be called M102. NGC5866 is either a lenticular or a spiral galaxy in the constellation Draco. Because of it's edge-on appearance, it is difficult to definitively tell if it is lenticular. The prominent dust disk would suggest it is not, as such a lane would be very unusual in a lenticular galaxy. It has an apparent magnitude of 10.70 and is approximately 50 million light-years distant. Telescope: Celestron C8 Schmidt-Cassegrain Accessories: Celestron f/6.3 reducer/corrector; Dew control by Dew Buster® Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 39 x 480sec @ ISO 800 (5hr. 12min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): May 3, 5 &amp; 6, 2010 Temperature(s): N1:65ºF; N2:77ºF (dropped to 70ºF); N3:77ºF (dropped to 72ºF) SQM reading (begin - end): N1:?; N2:19.13 - 19.26; N3:18.97 - 19.22 Moon data: n/a Location: Hendersonville, TN<br /><br />2 comments templec Tue, 11 May 2010 15:03:33 -0400 Venus, Crescent Moon, and The Pleiades http://www.astrophotogallery.org/scenics/p5409-venus-2c-crescent-moon-2c-and-the-pleiades.html <a href="http://www.astrophotogallery.org/scenics/p5409-venus-2c-crescent-moon-2c-and-the-pleiades.html"><img title="CrescentMoon_Venus_Pleiades_041610_1280x851.jpg" border="0" src="http://www.astrophotogallery.org/data/822/thumbs/CrescentMoon_Venus_Pleiades_041610_1280x851.jpg" alt="CrescentMoon_Venus_Pleiades_041610_1280x851.jpg" /></a><br /><br />by: templec<br /><br />Description: This image, taken from our patio in Hendersonville, TN, facing West at dusk, on April 16, 2010, shows bright Venus (below center of the frame), the young crescent Moon, and above the Moon near the top of the frame, is M45, The Pleiades. Taken with a Nikon D40 on a fixed tripod, single 1/1.6sec JPG, with an 18-55mm lens at 55mm, ISO400. Made some small adjustments using levels and curves in PSCS4.<br /><br />3 comments templec Fri, 30 Apr 2010 22:02:33 -0400 Venus, Crescent Moon, and The Pleiades http://www.astrophotogallery.org/scenics/p5410-venus-2c-crescent-moon-2c-and-the-pleiades.html <a href="http://www.astrophotogallery.org/scenics/p5410-venus-2c-crescent-moon-2c-and-the-pleiades.html"><img title="CrescentMoon_Venus_Pleiades_041610_1280x851.jpg" border="0" src="http://www.astrophotogallery.org/data/822/thumbs/CrescentMoon_Venus_Pleiades_041610_1280x851.jpg" alt="CrescentMoon_Venus_Pleiades_041610_1280x851.jpg" /></a><br /><br />by: templec<br /><br />Description: This image, taken from our patio in Hendersonville, TN, facing West at dusk, on April 16, 2010, shows bright Venus (below center of the frame), the young crescent Moon, and above the Moon near the top of the frame, is M45, The Pleiades. Taken with a Nikon D40 on a fixed tripod, single 1/1.6sec JPG, with an 18-55mm lens at 55mm, ISO400. Made some small adjustments using levels and curves in PSCS4. templec Fri, 30 Apr 2010 22:02:33 -0400 M88 (NGC4501) http://www.astrophotogallery.org/galaxies/p5376-m8828ngc4501-29.html <a href="http://www.astrophotogallery.org/galaxies/p5376-m8828ngc4501-29.html"><img title="M88_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/M88_Final.jpg" alt="M88_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: In 1781, Charles Messier spotted this magnitude 10.40 Sbc spiral galaxy in Coma Berenecies. Also known as NGC4501 and VCC1401, it is one of the 15 Messier objects that belongs to the Virgo Cluster of approximately 1300+ galaxies. It lies at a distance of approximately 47 million light-years from Earth. Telescope: Celestron C8 Schmidt-Cassegrain Accessories: Celestron f/6.3 reducer/corrector; Dew control by Dew Buster® Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 50 x 480sec @ ISO 800 (6hr. 40min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): April 14, 15 &amp; 18, 2010 Temperature(s): N1:75ºF (dropped to 68ºF); N2:73ºF (dropped to 66ºF); N3:60ºF (dropped to 54ºF) SQM reading (begin - end): N1:18.52 - 18.82; N2:18.41 - 19.10; N3:19.00 - 18.90 Moon data: n/a Location: Hendersonville, TN templec Sat, 24 Apr 2010 19:26:20 -0400 M88 (NGC4501) http://www.astrophotogallery.org/galaxies/p5377-m8828ngc4501-29.html <a href="http://www.astrophotogallery.org/galaxies/p5377-m8828ngc4501-29.html"><img title="M88_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/M88_Final.jpg" alt="M88_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: In 1781, Charles Messier spotted this magnitude 10.40 Sbc spiral galaxy in Coma Berenecies. Also known as NGC4501 and VCC1401, it is one of the 15 Messier objects that belongs to the Virgo Cluster of approximately 1300+ galaxies. It lies at a distance of approximately 47 million light-years from Earth. Telescope: Celestron C8 Schmidt-Cassegrain Accessories: Celestron f/6.3 reducer/corrector; Dew control by Dew Buster® Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 50 x 480sec @ ISO 800 (6hr. 40min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): April 14, 15 &amp; 18, 2010 Temperature(s): N1:75ºF (dropped to 68ºF); N2:73ºF (dropped to 66ºF); N3:60ºF (dropped to 54ºF) SQM reading (begin - end): N1:18.52 - 18.82; N2:18.41 - 19.10; N3:19.00 - 18.90 Moon data: n/a Location: Hendersonville, TN templec Sat, 24 Apr 2010 19:26:20 -0400 M88 (NGC4501) http://www.astrophotogallery.org/galaxies/p5378-m8828ngc4501-29.html <a href="http://www.astrophotogallery.org/galaxies/p5378-m8828ngc4501-29.html"><img title="M88_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/M88_Final.jpg" alt="M88_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: In 1781, Charles Messier spotted this magnitude 10.40 Sbc spiral galaxy in Coma Berenecies. Also known as NGC4501 and VCC1401, it is one of the 15 Messier objects that belongs to the Virgo Cluster of approximately 1300+ galaxies. It lies at a distance of approximately 47 million light-years from Earth. Telescope: Celestron C8 Schmidt-Cassegrain Accessories: Celestron f/6.3 reducer/corrector; Dew control by Dew Buster® Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 50 x 480sec @ ISO 800 (6hr. 40min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): April 14, 15 &amp; 18, 2010 Temperature(s): N1:75ºF (dropped to 68ºF); N2:73ºF (dropped to 66ºF); N3:60ºF (dropped to 54ºF) SQM reading (begin - end): N1:18.52 - 18.82; N2:18.41 - 19.10; N3:19.00 - 18.90 Moon data: n/a Location: Hendersonville, TN templec Sat, 24 Apr 2010 19:26:20 -0400 M61 (NGC4303) - The Swelling Spiral Galaxy http://www.astrophotogallery.org/galaxies/p5362-m6128ngc4303-29the-swelling-spiral-galaxy.html <a href="http://www.astrophotogallery.org/galaxies/p5362-m6128ngc4303-29the-swelling-spiral-galaxy.html"><img title="M61_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/M61_Final.jpg" alt="M61_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: M61 (NGC4303) is a magnitude 10.18 spiral galaxy located about 52 million light-years distant in the constellation Virgo. It was discovered on May 5, 1779 by Barnabus Oriani while searching for a comet. Charles Messier saw M61 this same night, but thougt it was the comet. After a few days of observing the object, he realized that it was not, in fact, the comet, but a nebula (which was later determined to be a galaxy). Telescope: Celestron C8 Schmidt-Cassegrain Accessories: Celestron f/6.3 reducer/corrector; Dew control by Dew Buster® Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 38 x 480sec @ ISO 800 (5hr. 4min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): April 11 &amp; 12, 2010 Temperature(s): N1:65ºF (dropped to 58ºF); N2:67ºF (dropped to 60ºF) SQM reading (begin - end): N1:19.03 - 19.25; N2:18.77 - 19.15 Moon data: n/a Location: Hendersonville, TN templec Tue, 20 Apr 2010 11:53:16 -0400 M61 (NGC4303) - The Swelling Spiral Galaxy http://www.astrophotogallery.org/galaxies/p5363-m6128ngc4303-29the-swelling-spiral-galaxy.html <a href="http://www.astrophotogallery.org/galaxies/p5363-m6128ngc4303-29the-swelling-spiral-galaxy.html"><img title="M61_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/M61_Final.jpg" alt="M61_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: M61 (NGC4303) is a magnitude 10.18 spiral galaxy located about 52 million light-years distant in the constellation Virgo. It was discovered on May 5, 1779 by Barnabus Oriani while searching for a comet. Charles Messier saw M61 this same night, but thougt it was the comet. After a few days of observing the object, he realized that it was not, in fact, the comet, but a nebula (which was later determined to be a galaxy). Telescope: Celestron C8 Schmidt-Cassegrain Accessories: Celestron f/6.3 reducer/corrector; Dew control by Dew Buster® Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 38 x 480sec @ ISO 800 (5hr. 4min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): April 11 &amp; 12, 2010 Temperature(s): N1:65ºF (dropped to 58ºF); N2:67ºF (dropped to 60ºF) SQM reading (begin - end): N1:19.03 - 19.25; N2:18.77 - 19.15 Moon data: n/a Location: Hendersonville, TN templec Tue, 20 Apr 2010 11:53:16 -0400 M61 (NGC4303) - The Swelling Spiral Galaxy http://www.astrophotogallery.org/galaxies/p5364-m6128ngc4303-29the-swelling-spiral-galaxy.html <a href="http://www.astrophotogallery.org/galaxies/p5364-m6128ngc4303-29the-swelling-spiral-galaxy.html"><img title="M61_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/M61_Final.jpg" alt="M61_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: M61 (NGC4303) is a magnitude 10.18 spiral galaxy located about 52 million light-years distant in the constellation Virgo. It was discovered on May 5, 1779 by Barnabus Oriani while searching for a comet. Charles Messier saw M61 this same night, but thougt it was the comet. After a few days of observing the object, he realized that it was not, in fact, the comet, but a nebula (which was later determined to be a galaxy). Telescope: Celestron C8 Schmidt-Cassegrain Accessories: Celestron f/6.3 reducer/corrector; Dew control by Dew Buster® Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 38 x 480sec @ ISO 800 (5hr. 4min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja; Noel Carboni's Tools Date(s): April 11 &amp; 12, 2010 Temperature(s): N1:65ºF (dropped to 58ºF); N2:67ºF (dropped to 60ºF) SQM reading (begin - end): N1:19.03 - 19.25; N2:18.77 - 19.15 Moon data: n/a Location: Hendersonville, TN templec Tue, 20 Apr 2010 11:53:16 -0400 The Whale &amp; The Hockey Stick Galaxies http://www.astrophotogallery.org/galaxies/p5332-the-whale26amp-3b-the-hockey-stick-galaxies.html <a href="http://www.astrophotogallery.org/galaxies/p5332-the-whale26amp-3b-the-hockey-stick-galaxies.html"><img title="WhaleHockeyStick_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/WhaleHockeyStick_Final.jpg" alt="WhaleHockeyStick_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: There are actually 4 galaxies in this image, the major members of the NGC4631 Group. NGC4631, the brightest at magnitude 9.80, is an edge-on spiral known as the Whale Galaxy. Just below, the magnitude 13.10 dwarf elliptical companion galaxy is NGC4627. Above right are a pair of strongly interacting galaxies known as the Hockey Stick. The &quot;handle&quot; is NGC4656 and the &quot;blade&quot; is NGC4657, together they are magnitude 10.40. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: Orion StarShoot AutoGuider on William Optics ZS66 Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 61 x 180s @ ISO 800 (3hr. 3min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja Date(s): April 6, 2010 Temperature(s): 77ºF (dropped to 74ºF) SQM reading (begin - end): 18.62 - 18.55 Location: Hendersonville, TN<br /><br />4 comments templec Fri, 16 Apr 2010 13:52:09 -0400 The Whale &amp; The Hockey Stick Galaxies http://www.astrophotogallery.org/galaxies/p5333-the-whale26amp-3b-the-hockey-stick-galaxies.html <a href="http://www.astrophotogallery.org/galaxies/p5333-the-whale26amp-3b-the-hockey-stick-galaxies.html"><img title="WhaleHockeyStick_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/WhaleHockeyStick_Final.jpg" alt="WhaleHockeyStick_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: There are actually 4 galaxies in this image, the major members of the NGC4631 Group. NGC4631, the brightest at magnitude 9.80, is an edge-on spiral known as the Whale Galaxy. Just below, the magnitude 13.10 dwarf elliptical companion galaxy is NGC4627. Above right are a pair of strongly interacting galaxies known as the Hockey Stick. The &quot;handle&quot; is NGC4656 and the &quot;blade&quot; is NGC4657, together they are magnitude 10.40. Telescope: Astro Tech AT8IN 8” f/4 Newtonian Accessories: Baader MPCC Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: Orion StarShoot AutoGuider on William Optics ZS66 Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 61 x 180s @ ISO 800 (3hr. 3min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, min/max averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja Date(s): April 6, 2010 Temperature(s): 77ºF (dropped to 74ºF) SQM reading (begin - end): 18.62 - 18.55 Location: Hendersonville, TN templec Fri, 16 Apr 2010 13:52:09 -0400 NGC4565 - The Needle Galaxy http://www.astrophotogallery.org/galaxies/p5317-ngc4565the-needle-galaxy.html <a href="http://www.astrophotogallery.org/galaxies/p5317-ngc4565the-needle-galaxy.html"><img title="NGC4565_Final.jpg" border="0" src="http://www.astrophotogallery.org/data/621/thumbs/NGC4565_Final.jpg" alt="NGC4565_Final.jpg" /></a><br /><br />by: templec<br /><br />Description: Approximately 20 million light-years away in the constellation Coma Berenecies, lies one of the best-known examples of an edge-on spiral galaxy. NGC4565, also known as The Needle Galaxy, is a magnitude 10.42 unbarred spiral galaxy (type SA(s)b) discovered in 1785 by Sir William Herschel. Many astronomers are amazed that Charles Messier missed this magnificent object. Telescope: Celestron C8 Schmidt-Cassegrain Accessories: Celestron f/6.3 reducer/corrector; Dew control by Dew Buster® Mount: Orion Atlas EQ-G controlled by EQMOD Guiding: TS-OAG9 Off-axis, using Orion StarShoot AutoGuider Camera: Canon Digital Rebel T1i, Hap Griffin Baader modified Filters: Astronomik CLS-CCD EOS Clip Exposure: 42 x 480sec @ ISO 800 (5hr. 36min.) Acquisition: ImagesPlus 3.82 Camera Control Processing: ImagesPlus 3.80a – Calibrated, registered, averaged, DDP Post-processing: Adobe Photoshop CS4; Gradient XTerminator; Noise Ninja Date(s): April 9 &amp; 10, 2010 Temperature(s): N1:58ºF (dropped to 49ºF); N2:63ºF (dropped to 53ºF) SQM reading (begin - end): N1:18.85 - 19.30; N2:19.03 - 19.30 Moon data: n/a Location: Hendersonville, TN<br /><br />10 comments templec Tue, 13 Apr 2010 13:59:06 -0400