Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  IC 4277  ·  IC 4278  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
M51 - The Whirlpool Galaxy, Stephen Kirk
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M51 - The Whirlpool Galaxy

M51 - The Whirlpool Galaxy, Stephen Kirk
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M51 - The Whirlpool Galaxy

Equipment

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Acquisition details

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Description

6 hours of luminance, 3 hours of Ha both binned 1x1.  45 minutes each in R,R and G binned 2x2.
Luminance data from April 2021 and HA and RGB from March 2022.

TEC140 refractor and field flattener with Atik 460 EX Camera and Astrodon LRGBHA filters.
I used OAG and mount is my MESU200.

Comments

Sky plot

Sky plot

Histogram

M51 - The Whirlpool Galaxy, Stephen Kirk