Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034
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M81 and M82 in HaLRGB, Harald Becher
M81 and M82 in HaLRGB
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M81 and M82 in HaLRGB

Getting plate-solving status, please wait...
M81 and M82 in HaLRGB, Harald Becher
M81 and M82 in HaLRGB
Powered byPixInsight

M81 and M82 in HaLRGB

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Acquisition details

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Description

This image was quite hard to develop. In the second apporach I found hopefully the right balance of all ingredients (Ha, L, R,G and B).
Histogram is this time stretched just with Histogram Transformation (manual process).
Decent IFN is visible too and Holmberg IX (with low Ha signal in it).
Red was subtracted from Ha before adding it, so hopefully just addional Ha found its way into the image .

Unfortunately I have a problem with my RC, I got an addional Spike on bright stars, did not find the root cause yet.

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Histogram

M81 and M82 in HaLRGB, Harald Becher