Celestial hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Andromeda Galaxy  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224
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M31 - with hint of hydrogen gas around it, from city sky, Benjamin Law
M31 - with hint of hydrogen gas around it, from city sky
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M31 - with hint of hydrogen gas around it, from city sky

Getting plate-solving status, please wait...
M31 - with hint of hydrogen gas around it, from city sky, Benjamin Law
M31 - with hint of hydrogen gas around it, from city sky
Powered byPixInsight

M31 - with hint of hydrogen gas around it, from city sky

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Description

This is my longest project to date. 76 hours of integration time on M31. 
I was HOPING to get strong hydrogen gas signals around M31 using a small refractor from bortle 7-8 backyard, however, after collecting 61 hours of hydrogen data and when M31 is not a desirable target in the sky, I have to put this project to a stop (for now). 
Background stars have been separated in processing and the Hydrogen Alpha layer and Red channel have been subtracted to enhance contrast for Ha signals (at least in theory)

This will not end here, when I have a chance next year.... "I will be back" to this target.

Imaging dates:
September 2,3,4,5,14, 15,16, 19, 20,21,22,23,29,30,   October 1, 2,3,4,    November 17,19, 20, 25
L - 300x180s
L-100x5s
L-100x15s
R-40x180s
G-40x180s
B-40x180s
Ha-730x300s
Total: ~76 hours of integration

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M31 - with hint of hydrogen gas around it, from city sky, Benjamin Law