M42, M43, NGC1977

Posted: Jan 18th, 2026

Technical Info

Telescope/Lens: Sharpstar 76 edph 4,5

Camera: Zwo 1600mm

Guide Scope: OAG

Guide Camera: ZWO 220mm

Software: Pixinsight

Exposure:

90 x 60" ISO/Gain: 139 - R

90 x 60" ISO/Gain: 139 - G

74 x 60" ISO/Gain: 139 - B

Yellow, Bortle 5 zone:

Mozyr, Belarus

Nov 14th, 2025

4 h 14 m

My first decent RGB stack, I'd like to collect more. A third of the frames were rejected due to haze. But this is the BTO, you could even shoot it with a shoe.

Processing is light, no star separation, no fussing with layers. Just RGB combination, gradient removal, noise reduction, and stretching. That's it. Didn't even touch the curves to avoid eye strain. The center is blown out? Well, that's because of the exposure.

Resolution: 4056x2908 px

Scale: 5938 KB