Sh2-132 - Lion Nebula, RASA 8", 6 hrs

 Posted: Jan 8th, 2026
Technical Info
Telescope/Lens: Celestron RASA 8
Camera: Player One Ares-C
Mount: ZWO AM5N
Software: Nina, PixInsight
Exposure:
184 x 120" ISO/Gain: 100 - Antlia Dualband 5nm
Orange, Bortle 6 zone:
 Sofrino, Russia
 Sep 30th, 2025
6 h 8 m
290
Resolution: 2981x2961 px
Scale: 3362 KB

Sh2-132: the lion head. At my dacha. Player One Ares-C Pro, AM5N, RASA 8". Filter: Antlia Ha-Oiii F2 highspeed for fast systems. Frames: 184. F: 400m. F/2.2. Exposure: 120 sec. Total: 21960 sec = 6 hrs. Gain: 75. Flats. The season is back. You can accumulate at least 6 hours of dark time. Don't forget to turn on the dew heater in the camera (!!), otherwise the sensor fogs up. Processing options: Processing #1 (lots of gas): PixInsight (AutoDBE, BlurX, NoiseX, MAS, StarX, LHE, curves, GHS, curves). Processing #2 (green): Siril (SPCC), GraXpert (bge, deconv, denoise), starnet, Siril (histogram and curves). Processing #3 (blue): Siril (SPCC), GraXpert (bge, deconv, denoise), starnet, Siril (histogram and curves). And this is also with decomposition into HOO and "fixing" the Bayer filter leakage (more like a matter of taste and magic of color mixing than actually fixing something).

Add comment

Comments

There are no comments on this picture yet

Comments are available only to registered users. Register or log in to leave a comment.