Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4278  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool galaxy
M 51 Whirlpool Galaxy, Michael Timm
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M 51 Whirlpool Galaxy

M 51 Whirlpool Galaxy, Michael Timm
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M 51 Whirlpool Galaxy

Equipment

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Acquisition details

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Description

My next try on M 51, way better than before. I had a little problem with autoguiding: One should ensure that the cables between the cameras and the laptop are hanging free and that they not tend to tie on some screws :-) So a few frames got lost and some other are a bit blurry.

I am still trying to figure out the right debayer matrix especially in combination between DSS and PI (the image is calibrated, stacked and debayered with DSS and post-processed with PI). The original version is debayered with RGGB which seems wrong. Version B is debayered with BGGR which seems better but less naturally. Any suggestions which one is correct?

Comments

Revisions

  • Final
    M 51 Whirlpool Galaxy, Michael Timm
    Original
  • M 51 Whirlpool Galaxy, Michael Timm
    B
  • M 51 Whirlpool Galaxy, Michael Timm
    C

B

Description: Debayered with BGGR.

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C

Description: Histogram corrected.

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Sky plot

Sky plot

Histogram

M 51 Whirlpool Galaxy, Michael Timm