Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool galaxy
M51 Whirlpool Galaxy HaLRGB from white zone, Harrington Beach Imagers Group
M51 Whirlpool Galaxy HaLRGB from white zone
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M51 Whirlpool Galaxy HaLRGB from white zone

M51 Whirlpool Galaxy HaLRGB from white zone, Harrington Beach Imagers Group
M51 Whirlpool Galaxy HaLRGB from white zone
Powered byPixInsight

M51 Whirlpool Galaxy HaLRGB from white zone

Equipment

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Acquisition details

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Description

I tested out a newly acquired (but not new) 8" Ritchey Chretien under paltry urban skies back on 3/23. Seeing and transparency were poor, light pollution was at it's worst. I collimated with a sight cap and visually with a star, but sky conditions and the cold made me say "fudge it" and I moved forward to capture something for the night as I had limited time to do so. The weather has been excessively poor for months now, so I take what I can get. Was a bit rusty in gathering my thoughts on how to process this one. So many things working against me that night, I wasn't really impressed with my subs to begin with, but I processed anyway b/c I like a challenge.

Total integration time: 1.3 hours

Lum 15x30s 1x1 bin

Red 14x60s 1x1 bin (tossed a sub)

Grn 15x60s 1x1 bin

Blu 15x60s 1x1 bin

Ha 14x120s 1x1 bin

Comments

Sky plot

Sky plot

Histogram

M51 Whirlpool Galaxy HaLRGB from white zone, Harrington Beach Imagers Group