Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Andromeda Galaxy  ·  HD3765  ·  HD3969  ·  HD4143  ·  HD4174  ·  HD4322  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 206  ·  NGC 221  ·  NGC 224
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Andromeda Galaxy M31, Lukas Klizas
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Andromeda Galaxy M31

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)
Getting plate-solving status, please wait...
Andromeda Galaxy M31, Lukas Klizas
Powered byPixInsight

Andromeda Galaxy M31

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

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Description

I got lucky to stay for a week under Bortle 2 skies, so decided to use this time to do some broadband imaging. Also, first time collecting > 15 hours of data, it really makes a difference!
Had to throw away a lot of subs from the first two nights, but ended up with enough for a decent stack.

Initially, I wanted to divide shooting time between M31 and Triangulum galaxy, but after stacking the data of first two nights, I noticed these artifacts:
stack.jpg

It turns out, they were caused by OAG. Adjusting OAG prism position fixed the issue, and stacking subs without these internal reflections made sure they do not appear in the final image.

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Andromeda Galaxy M31, Lukas Klizas