Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4263  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool galaxy
M51 The Whirlpool Galaxy HaRGB, Stephen Jennette
M51 The Whirlpool Galaxy HaRGB
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M51 The Whirlpool Galaxy HaRGB

M51 The Whirlpool Galaxy HaRGB, Stephen Jennette
M51 The Whirlpool Galaxy HaRGB
Powered byPixInsight

M51 The Whirlpool Galaxy HaRGB

Equipment

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Acquisition details

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Description

4 hours of 10 minute Luminance exposures.

2 hours of 20 minute Hydrogen-alpha

6 x 5 minutes exposures for each RGB channel.

Total 7.5 hours exposure.

H-a data blended into both Red and luminance channels.

Altair Astro 115mm Triplet.

Atik 428 mono camera.

Baader LRGB and H-a filters.

Photoline 0.79 reducer.

All mounted on a Skywatcher EQ8 and controlled with Sequence Generator Pro.

Comments

Sky plot

Sky plot

Histogram

M51 The Whirlpool Galaxy HaRGB, Stephen Jennette