IC 1396 with the Elephant’s Trunk Nebula. 30×180 sec, QHY183c at -15C, Gain 11, Offset 50, Astro-Tech AT60ED at F/4.8, Optolong L-eNhance filter. Taken from a metro-area under heavy LP on Sep 26, 2021Detail View – IC 1396 with the Elephant’s Trunk Nebula (IC 13996A.) 30×180 sec, QHY183c at -15C, Gain 11, Offset 50, Astro-Tech AT60ED at F/4.8, Optolong L-eNhance filter.
Crescent Nebula. 120 minutes (3 min subs,) QHY183c at -15C, Astro-Tech AT60ED at F/4.8, Optolong L-eNhance filter, SharpCap 3.2 LiveStacking from a metro area. Quick Fitsworks stretch, then final processing in PS.Rotated, cropped and enhanced version of the Crescent Nebula. 120 minutes (3 min subs,) QHY183c at -15C, Astro-Tech AT60ED at F/4.8, Optolong L-eNhance filter, SharpCap 3.2 LiveStacking from a metro area. Quick Fitsworks stretch, then final processing in PS.
The Veil Nebula Complex – 20 x 180 sec, QHY183c at -15C, Gain 11, Offset 50, Optolong L-eNhance filter, Astro-Tech AT60ED at F/4.8, SharpCap 3.2 Live Stacking for acquisition, metro-area light pollution conditions.
The Helix Nebula – 14 x 180 sec, QHY183c at -15C, Gain 11, Offset 50, Optolong L-eNhance filter, Astro-Tech AT60ED at F/4.8, SharpCap 3.2 Live Stacking for acquisition. Taken from metro-area light polluted conditions.
The Eastern Veil Nebula – 18 x 180 sec, QHY183c at -15C, Gain 11, Offset 50, Optolong L-eNhance filter, Astro-Tech AT60ED at F/4.8, SharpCap 3.2 Live Stacking for acquisition, metro-area light pollution.
The Lagoon Nebula on September 11, 2021. 20×180 sec @ Gain 11, Offset 50, QHY183c at -15C, L-eNhance filter, Astro-Tech AT60ED at F/4.8, SharpCap 3.2 Live Stacking in metro-area conditions.
The Eagle Nebula – M16. 41×180 sec, QHY183C at Gain 20, Offset 0, -15C cooling, UHC filter, Astro-Tech AT60 ED at F/4.8.The Trifid Nebula. 9×180 sec, QHY183C at Gain 20, Offset 0, -15C cooling, UHC filter, Astro-Tech AT60 ED at F/4.8.
First Light Images for a new Astro-Tech AT60ED telescope. Nice 360mm F/6 doublet with FPL-53 synthetic fluorite and Lanthanum lenses. I bought the 0.8x Reducer/Flattener that goes with it, too. It gives you a 288mm F.L. at F/4.8 with that combo. Resolution is still good at 1.72 arc sec/pixel with my camera.
These objects are the Eagle Nebula, Trifid and North America Nebulae. All were taken with a QHY183C camera at gain 20, -15C cooling and a cheap no-name UHC filter from a metro area, Bortle 7-8 zone.
The North America Nebula. 9 x180 sec, QHY183C at Gain 20, Offset 0, -15C cooling, UHC filter, Astro-Tech AT60 ED at F/4.8.
M45 – 32×180 sec @ Gain 11, Offset 100, QHY183c at -20C, Baader UHC-S filter, Televue TV-85 at F/5.6.
Not too bad for a session from the metro LP zone! Only 96 minutes, but it was enough with these settings to show quite a bit of nebulousity. I used the unity gain setting (11) and that made a big difference in hot pixels and noise. My other shots at a gain of 20 were plagued by hot pixels that SharpCap 3.2 doesn’t seem to be able to deal with very well. I like this much better and there is just as much data buried in there as in the higher gain shots.
I am still working on the Heart Nebula mosiac I started shooting the first few days of the new year. Plenty of work left, but I at least have a more complete image at this point.
Thor’s Helmet. 3 sessions with the last being 25 x 3 minutes of integration.
Over 4.6 hours of integration with a variety of exposures including 3 min, 2 min and 30 sec sub-images. All were taken with a QHY183c camera at -20C or -15C cooling, an Optolong L-eNhance filter and a Televue TV-85 at F/5.6.
thors-helmet-25×180-g20-o100-lnh-qhy183c_-20C-85f5_6-crop plus thors-helmet-30×120-g20-284×30-g37-o200-lnh-qhy183c_-15C-85f5_6-v2a
Images of Comets, Nebulae, Galaxies and Star Clusters
