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

Getting plate-solving status, please wait...
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

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C

Description: annotated version

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Sky plot

Sky plot

Histogram

M51 the Whirlpool Galaxy, tommy_nawratil