Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  Cigar galaxy  ·  M 82  ·  NGC 3034
Messier 82, Daniel.P
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Messier 82

Messier 82, Daniel.P
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Messier 82

Equipment

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Acquisition details

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Description

Spring session under dark sky before moon rise : SQM 21.4 at zenith.

Unable start AO (mounted) probably one motor stuck in limit position. Will need to unjam it.

The B version is same image, with HDR (dynamic compression in PI) applied, to display the structure of the core of the galaxy.

Pre-processing done in Pixinsight :

- overscan area offset correction

- bias correction

- hot pixel correction

- debayer

- registration

- stack

Processing done in Pixinsight :

- backgroung color neutralisation

- color calibration using galaxy

- sky background removal (DBE in PI)

- slight deconvolution

- non linear image creation

- color saturation boost masked

- TGV denoise (no mask)

- green neutral

Final image :

- jpeg calibration done in Mac Photo (levels adjust and further saturation boost and color balance)

Comments

Revisions

  • Messier 82, Daniel.P
    Original
  • Final
    Messier 82, Daniel.P
    B

Sky plot

Sky plot

Histogram

Messier 82, Daniel.P