I decide to upload this picture as a new one and not as a revision because, after I don't even know how many months of bad weather, last evening I had excellent transparency (and bad seeing) and I decided to increase the integration of the H-alpha channel of the previous version of a year ago. I was not at satisfied all with the previous result. With a total of 5 hours of H-alpha, despite the short exposures of 2 seconds, I managed to slightly contain the noise and push a bit more with the sharpening, also thanks to the new tools and a few new processes learned. So it's a December 2021 LRGBHa composition to which I added about 2 hours of H-Alpha from last night with the new ASI 2600 MM Pro camera.
Dobson Nauris Mirrage 600 mm f 3,8 -
http://nauris.de/index.php/en/telescopes/vates-astrographParacorr Type 2
ASI 294 MM Pro
ASI 2600 MM Pro
Astrodon 31 mm unmounted LRGB filters
Astronomik 2" mounted H-alpha 12 nm
H-alpha 6040 x 2 sec. Gain 300 Bin 1 -10°
H-alpha 3200 x 2 sec. Gain 300 Bin 1 -10°
L 5080 x 1,5 sec. Gain 300 Bin 1 -10°
R 1280 x 1,5 sec. Gain 300 Bin 2 -10°
G 1100 x 1,5 sec. Gain 300 Bin 2 -10°
B 1240 x 1,5 sec. Gain 300 Bin 2 -10°
Tot. Integration 9 h
Dark x 100 - No Flat - No Bias
Pegasus Astro Falcon Rotator
SharpCap - Siril - PixInsight - Photoshop
Drizzle x 2 - Resize
Luminance and H-Alpha: Crop-DBE-BXT-NXT-Stretch-LHE-HMT-CT
RGB: PI (Star alignment-DBE-SPCC-BXT-Stretch-NXT-CT) Photoshop (Wow!Frequency Equalizer Pro2 - Camera Raw)
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