Celestial hemisphere:  Northern  ·  Constellation: Pisces (Psc)  ·  Contains:  M 74  ·  NGC 628

Image of the day 12/01/2014

    M74, Colin McGill
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    M74

    Image of the day 12/01/2014

      M74, Colin McGill
      Powered byPixInsight

      M74

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      Description

      M74. This is the third time I've tried with this object, and still struggling with it, so I combined the subs from the last two attempts and now looks more like a galaxy!

      Second attempt with atrous smoothing rather than TGBDenoise. Also applied a little HDRwavelets to bring out the colours better in the core.

      As per Callum's request, I've combined the first image with HDRWavelets as image C (also uploaded version B again, this time with the same orientation to make comparisons easier)!

      FInal version, I think before I integrate the Ha data. For this version, I applied am inverse Lum mask to TGVDenoise, and also reduced the mask I use for HDRwavelets by 2 so that it brings out the details, but is not as harsh. Not sure I can reduce the brightness of the background any more without losing the extended spiral arms.

      Thank you to everyone who has commented - this is a much better image as a result!

      Finally, also added Ha data to the image.

      Comments

      Revisions

        M74, Colin McGill
        Original
        M74, Colin McGill
        C
        M74, Colin McGill
        D
        M74, Colin McGill
        E
      • Final
        M74, Colin McGill
        F

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      M74, Colin McGill