Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Cigar Galaxy  ·  M 82  ·  NGC 3034  ·  PGC 2730379  ·  PGC 2730409  ·  PGC 2730709  ·  PGC 2731294  ·  PGC 2732102  ·  PGC 2732338  ·  PGC 2732720  ·  PGC 2732797  ·  PGC 2732888  ·  PGC 2733060  ·  PGC 2733286  ·  PGC 2733474  ·  PGC 3086268  ·  PGC 3086325  ·  PGC 3097961
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M 82, JuergenB
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M 82

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M 82, JuergenB
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M 82

Equipment

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Acquisition details

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Description

On three nights, I revisited M 82 and took H-alpha and LRGB frames. For the final image, H-alpha signal was added to luminance, red and blue channels in different amounts. Thus, the H-alpha filaments became more distinct. In hindsight, even more H-alpha subframes would have been beneficial for the final result.

Comments

Revisions

  • M 82, JuergenB
    Original
  • M 82, JuergenB
    B
  • Final
    M 82, JuergenB
    C

B

Description: Emphasizing the HII filaments a bit more resulted in this version

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C

Description: A slight increase of saturation and red hue resulted in a somewhat more dramatic representation

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Sky plot

Sky plot

Histogram

M 82, JuergenB