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

Image of the day 07/04/2017

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    M51 the Whirlpool Galaxy, tommy_nawratil
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    M51 the Whirlpool Galaxy

    Image of the day 07/04/2017

    Getting plate-solving status, please wait...
      M51 the Whirlpool Galaxy, tommy_nawratil
      Powered byPixInsight

      M51 the Whirlpool Galaxy

      Equipment

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      Acquisition details

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      Description

      This is a LRGBHa of 149+62+36+28+29 subframes. The trick for the details was to sort out the best Luminance data by FWHM, and stack them separately to build the highlights from them. All of them were used for the background and extracting weak signal.

      A crop on the galaxy and a full field is provided, both at 100% resolution.

      A good deal of sharpening and contrasting was done using a new technique developed for Photoshop by Christoph Kaltseis, he showed it first at CEDIC 2017 conference in Austria. It free and non commercial, learn more about APF-R here:

      http://www.cedic.at/apfr/

      Comments

      Revisions

        M51 the Whirlpool Galaxy, tommy_nawratil
        Original
      • Final
        M51 the Whirlpool Galaxy, tommy_nawratil
        B
        M51 the Whirlpool Galaxy, tommy_nawratil
        C

      B

      Description: crop on M51

      Uploaded: ...

      C

      Description: annotated version

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      Sky plot

      Sky plot

      Histogram

      M51 the Whirlpool Galaxy, tommy_nawratil