Galaxy Andromeda Nebula (M31)

 Posted: Sep 27th, 2025
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Technical Info
Telescope/Lens: Askar 65 PHQ
Camera: ZWO ASI294MM Pro
Mount: JUWEI 14
Guide Scope: ZWO 30F4
Guide Camera: ZWO ASI120mini
Software: ZWO ASIAir OS, Siril, GraXpert, Pixinsight
Exposure:
18 x 300" ISO/Gain: 120 - Antlia V-series R pro
18 x 300" ISO/Gain: 120 - Antlia V-series G pro
18 x 300" ISO/Gain: 120 - Antlia V-series B pro
15 x 300" ISO/Gain: 120 - Antlia 3nm Narrowband H-Alpha (Ha)
Red zoneLight Pollution:
 Vyksa, Russia
 Sep 24th, 2025
5 h 45 m
548
Resolution: 4019x2717 px
Scale: 2520 KB
Updated
  5 Oct, 2025
  5 h 45 m
Удалил лишний водород с диска галактики скриптом ContinuumSubtraction из пакета Toolbox. Добавил Ha к RGB - скрипом CombineHaWithRGB из того же пакета. Подтянул локальный контраст и детализацию в ...
Current photo
  27 Sep, 2025
  5 h 45 m
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Comments

Seems like a bit too much hydrogen was taken away.
27 Sep, 2025 Reply
Strannick Replied to Oeswww
Do you mean that the disk of the galaxy has also taken on a reddish hue?
27 Sep, 2025 Reply
Oeswww Replied to Strannick
Yes.
27 Sep, 2025 Reply
Strannick Replied to Oeswww
I haven't had any experience processing galaxies with Ha yet. I used a script from the Toolbox package in Pixinsight. I guess I really should look into how to add hydrogen better.
27 Sep, 2025 Reply
Oeswww Replied to Strannick
Good luck. I also need to figure this out since I have LRGB and Ha data for M33.
27 Sep, 2025 Reply

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