NGC 2170

 Posted: May 4th, 2026
Show astrometry on hover
NGC
IC
HD
Technical Info
Telescope/Lens: ASA 500N
Camera: FLI ProLine 16803
Mount: ASA DDM85
Software: Siril, GraXpert, Lightroom
Exposure:
1 x 600" ISO/Gain: 0 - Astrodon R
1 x 600" ISO/Gain: 0 - Astrodon B
1 x 600" ISO/Gain: 0 - Astrodon G
29 x 300" ISO/Gain: 0 - Astrodon Ha
Black, Bortle 1 zone:
 Observatorio El Sauce Rio Hurtado , Chile
 Dec 10th, 2022
2 h 55 m
26
Resolution: 3017x3028 px
Scale: 7458 KB
An interesting process — the main body is mostly in Ha. 29 Ha frames and three 10-minute RGB files. Interestingly, the hydrogen itself is very weak with this amount of integration and very noisy. I didn't use masks or cut out the stars. I noticed that any sharpening, denoising, and similar operations act somewhat like a mask, shifting pixels from one channel to another — it's interesting to watch how the machine works. This is my second attempt at processing; I decided to approach it with a fresh mind. I'm finishing it in Lightroom, sometimes having to juggle between Siril and Lightroom. Equipment: CHI-1-CCD.
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