Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  IC 4277  ·  IC 4278  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
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M51 - Whirlpool Galaxy - 550mm (HaLRGB), Dominik Weinbrenner
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M51 - Whirlpool Galaxy - 550mm (HaLRGB)

Getting plate-solving status, please wait...
M51 - Whirlpool Galaxy - 550mm (HaLRGB), Dominik Weinbrenner
Powered byPixInsight

M51 - Whirlpool Galaxy - 550mm (HaLRGB)

Equipment

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Acquisition details

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Description

Another try at M51 with my 550mm APO trying to get the most of the short FL.
I integrated only the sharpest luminance subs to get the details as crisp as possible.
The image was stretched quite extensively to reveal the nice tidal streams of M51.
The RGB master already showed the H-II regions very prominently, and since I'm not a friend of overly boosted H-II regions anyways, I could have omitted the Hα acquisition entirely, in retrospect. Since I had the data, I used to it to very slightly push said regions (far too little to legitimate the ~2h under clear skies I invested).

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