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New Images
Image Description Photographer
M52 (open Cluster) in the Constellation Cassiopeia. Using an AP Starfire 160@F7.5 with an SBIG STT-8300 Camera. 1 Red @600s, 1 Green @900s, 2 Blue, totalling 1800s, and 1 Luminance @600s. Taken near Kerrville, TX on 1/08/2018.Dick Bobick
NGC 253 (Sculptor Galaxy) in the Constellation Sculptor. Using an AP Starfire 160@F7.5 with an SBIG STT-8300 Camera. 1 Red @800s, 1 Green @1200s, 2 Blue, totalling 2400s, and 1 Luminance @1200s. Taken near Kerrville, TX on 10/17/2017.Dick Bobick
NGC 7023 (Iris Nebula) in the Constellation Cepheus. Using an AP Starfire 160@F7.5 with an SBIG STT-8300 Camera. 1 Red @800s, 1 Green @1200s, 2 Blue, totalling 2400s, and 2 Luminance totalling 2400s. Taken near Kerrville, TX on 10/17/2017.Dick Bobick
M101 (Pinwheel Galaxy) in the Constellation Ursa Major. Using an AP Starfire 160@F7.5 with an SBIG STT-8300 Camera. 1 Red @800s, 1 Green @1200s, 2 Blue, totalling 2400s, and 2 Luminance totalling 2400s. Taken near Kerrville, TX on 8/18/2017.Dick Bobick
Total Eclipse from Alliance, Nebraska: Egress with "Diamond Ring" effect. Equipment: Unmodified Canon 60D DSLR, Astro-Physics 105mm Traveler telescope at f/6.3 with a field flattener on an Astro-Physics Mach 1 GTO equatorial mount. This was a single shot processed in Photoshop.Bruce Barton
Total Eclipse from Alliance, Nebraska: Egress with Baily's Beads, Chromosphere and prominences displaying. Equipment: Unmodified Canon 60D DSLR, Astro-Physics 105mm Traveler telescope at f/6.3 with a field flattener on an Astro-Physics Mach 1 GTO equatorial mount. This was a composite of two shots blended together in Photoshop.Bruce Barton
Total Eclipse from Alliance, Nebraska: Ingress with Baily's Beads displaying. Equipment: Unmodified Canon 60D DSLR, Astro-Physics 105mm Traveler telescope at f/6.3 with a field flattener on an Astro-Physics Mach 1 GTO equatorial mount. This was a composite of two shots blended together in Photoshop.Bruce Barton
Total Eclipse from Alliance, Nebraska. Equipment: Unmodified Canon 60D DSLR, Astro-Physics 105mm Traveler telescope at f/6.3 with a field flattener on an Astro-Physics Mach 1 GTO equatorial mount. This was a High Dynamic Range composite of 1/1600 second, 1/25 second, and 1/3 second exposures, three in all, that were combined using layer masks in Photoshop.Bruce Barton
Total Solar Eclipse Montage, August 21, 2017 from Alliance, Nebraska. Equipment: Sony RX100M3 Digital Camera with Telephoto Zoom set at 600mm. Exposures 1/1000 to 1/4000 at F5.6 with Baader solar film (Except totality shot with film removed, 1/1000 at F5.6, ISO-6400).C. E. Steuart Dewar
End of Total Solar Eclipse with Diamond Ring effect. August 21, 2017 from Alliance, Nebraska. Equipment: Sony RX100M3 Digital Camera with Telephoto Zoom set at 600mm. Exposure 1/1000 at F5.6, ISO-6400.C. E. Steuart Dewar
Total Solar Eclipse with nearby Star, Regulus. August 21, 2017 from Alliance, Nebraska. Equipment: Sony RX100M3 Digital Camera with Telephoto Zoom set at 600mm. Exposure 1/1000 at F5.6, ISO-6400C. E. Steuart Dewar
Equipment:  C 9.25 Edge, Baader 2X barlow, ZWO asi120mc-s cameraRyan Behrends
Taken moments before Europa starts its transit. The Great Red Spot is just turning into view on the lower band, and just to the right of center a little lower is Red Spot Junior (Aka "Oval BA") -  which was first seen in 2006 and is still visible some 11 years later (there's a white, oval just below it) . Several large bluish festoons can be seen looping down from the upper band in this photo. Edge-11HD, AP Mach1/GTO, ASI-1600mc, 400 of 2,000 frames, April 23, 2017.C. E. Steuart Dewar
Europa Transit of Jupiter with IO on left and GRS visible. Edge-11HD, AP Mach1/GTO, ASI-1600mc, 400 of 2,000 frames, April 23, 2017.C. E. Steuart Dewar
Wide-field image of the Veil Nebula complex, NGC6992, NGC6960, NGC6979, etc. in Cygnus.

Date & Location: Nov. 29 & 30, 2016 at Comanche Point Observatory, Ingram, TX
Instrument:  William Optics WO STAR71, 71mm f/4.9 five element refractor, focal length 350mm
Camera: SBIG STT8300M monochrome camera with AstroDon Red, Green, Blue, and Luminance filters
Exposure: 310 minutes total, 10 minute subframe exposures, cooled to -20 deg. C.
Combined and processed using MaxIm D/L v. 6.0 and Photoshop v. 7
Bruce Barton
Images of the Antennae Galaxies (NGC 4038 and NGC 4039) were taken over a two year period (2015-2016) and required a total of 16.25 hours of exposure.  Specifically, 390 minutes of luminance and 195 minutes of RGB each.  Kenric Kattner
NGC2024 (Flame Nebula) - 4x120s, ASI-1600MC, AP130GTX, AP Mach1/GTO, DeepSky Stacker, processed in Photoshop.C. E. Steuart Dewar
M1 (Crab Nebula) - 7x120s, ASI-1600MC, AP130GTX, AP Mach1/GTO, DeepSky Stacker, processed in Photoshop.C. E. Steuart Dewar
M17 (Swan Nebula) - 10x120s, ASI-1600MC, AP130GTX, AP Mach1/GTO, DeepSky Stacker, processed in Photoshop (from 28-sep-2016).C. E. Steuart Dewar
M27 (Dumbell Nebula) - 10x120s, ASI-1600MC, AP130GTX, AP Mach1/GTO, DeepSky Stacker, processed in Photoshop.C. E. Steuart Dewar
Moon past first quarter, 350 of 1,000, seeing=3/5, ASI-1600MC, AP130GTX, AP Mach1/GTO, processed in Registax and Photoshop.C. E. Steuart Dewar
Plato and Vallis Alpes, 200 of 2,000, seeing=3/5, ASI-1600MC, AP130GTX, AP Mach1/GTO, processed in Registax and Photoshop.C. E. Steuart Dewar
M20 (Trifid Nebula) - 5x60s, ASI-1600MC, AP130GTX, AP Mach1/GTO, DeepSky Stacker, processed in PixInsight and Photoshop. C. E. Steuart Dewar
M17 (the Swan Nebula) - 5x120s, ASI-1600MC, AP130GTX, AP Mach1/GTO, DeepSky Stacker, processed in Photoshop. C. E. Steuart Dewar
M11 (Wild Duck Cluster) = 5x60s, ASI-1600MC, AP130GTX, AP Mach1/GTO, DeepSky Stacker, processed in Photoshop. C. E. Steuart Dewar
Moon and Venus before Occultation, ZWO 120mc-s camera Ryan Behrends
Apollo 15 landing site near Mons Hadley, January 18, 2016, ZWO 120mc-s camera Ryan Behrends
Jupiter from January 31, 2016, ZWO 120mc-s camera Ryan Behrends
Mars from June 27, 2016, ZWO 120mc-s camera Ryan Behrends
Saturn from June 27, 2016, ZWO 120mc-s camera Ryan Behrends
Clavius from Nobember 20, 2015, ZWO 120mc-s camera Ryan Behrends
Venus occultation by the moon on 12/07/15.  It's afocal through a Celestron C6 SCT using a Canon digital camera.  Photo taken about 8 minutes before ingress at 10:55 AM. Dan Posey
M4 Globular Cluster in Scorpius. Stack of five, one minute exposures, ASI-1600MC, AP130GTX, AP Mach1/GTO. C. E. Steuart Dewar
Mars on August 6, 2016, size was 12.6", stack of 250/1000 exposures on ASI-1600MC, AP130GTX, AP Mach1/GTO. C. E. Steuart Dewar
Saturn on August 6th, 2016, stack of 115/500 exposures on ASI-1600MC, AP130GTX, AP Mach1/GTO. C. E. Steuart Dewar
Moon just past first quarter taken with a Sony RX10 MIII Cybershot digital camera at full zooom (600mm). No telescope or tripod involved (!). C. E. Steuart Dewar
Moon: Gassendi Crater, TMB105/650 C. E. Steuart Dewar
Moon: Rupes Recta (The Great Wall), Celestron C8 C. E. Steuart Dewar
Vallis Alpes - with an 8" Celestron SCT, SkyNyx 2.1c Camera. Showing the elusive rille on the floor of Vallis Alpes C. E. Steuart Dewar
Jupiter Stack of 100/200 exposures C. E. Steuart Dewar



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