Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's galaxy  ·  Bode's nebulae  ·  M 81  ·  NGC 3031
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Messier 81 Closeup, Miles Zhou
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Messier 81 Closeup

Getting plate-solving status, please wait...
Messier 81 Closeup, Miles Zhou
Powered byPixInsight

Messier 81 Closeup

Equipment

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Acquisition details

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Description

This LRGB image contains a lot of information, hard to handle. As a test, trying to collect some comments. This is an in-process work. More data will be collected.

Version C is a drizzled version, but didn't see significant improvement in details.

Version D has a manual color adjustment of blue turned down by 5% based on non-structural color calibration (PixInsight jargon, meaning balance color channels based on an area of interest).

Comments

Revisions

    Messier 81 Closeup, Miles Zhou
    Original
    Messier 81 Closeup, Miles Zhou
    B
    Messier 81 Closeup, Miles Zhou
    C
  • Final
    Messier 81 Closeup, Miles Zhou
    D

B

Description: Added Ha. Noise is not under well control. More revision may come.

Uploaded: ...

C

Description: Drizzled

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D

Description: Color adjustment

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Sky plot

Sky plot

Histogram

Messier 81 Closeup, Miles Zhou

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