Andromeda Nebula with hydrogen and oxygen

Posted: Oct 22nd, 2026

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NGC

Technical Info

Telescope/Lens: Celestron RASA 8, Takahashi FSQ-85EDX + x0.73 Reducer

Camera: ZWO ASI071MC Pro

Mount: ZWO AM5

Guide Scope: SkyWatcher 8x50

Guide Camera: QHY5L-II-C

Software: PixInsight

Accessories: Mele PC + NINA, Celestron SCT Focuser

Exposure:

67 x 600" ISO/Gain: 90 - Astronomik L-2 + RASA8

289 x 600" ISO/Gain: 90 - IDAS NBZ-II + RASA8

20 x 30" ISO/Gain: 90 - Astronomik L-2 + RASA8

83 x 600" ISO/Gain: 90 - Optolong L-Pro + Takahashi FSQ-85EDX + x0.73 Reducer

Green, Bortle 4 zone:

Nijniy Novgorod, Russia

Sep 30th, 2025

73 h 20 m

Resolution: 4780x3012 px

Scale: 9926 KB

n0r1s

159

Reassembled my dream Andromeda, included in the stack frames that I shot in 2023 on the Tak. Ended up with more than 73 hours of data, of which more than half in hydrogen-oxygen. Managed somehow to pull out SDSO1 better, and the emission nebulae in the galaxy. I'm happier with this version than the old one. P.S. The little crosses are because my cable organizer on the RASA is like that =)

Current photo Updated

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