Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  IC 4277  ·  IC 4278  ·  IC 4282  ·  M 51  ·  NGC 5194  ·  NGC 5195  ·  Whirlpool Galaxy
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M51 - The Whirlpool Galaxy, Bill Worley
M51 - The Whirlpool Galaxy
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M51 - The Whirlpool Galaxy

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Description

Luminance is from 2006 that I shot at my old observatory. The 2006 luminance used a SBIG ST-2000XM w/AO7 and a Meade LX200 10" f/6.3 at 1715mm. The luminance is off center because that is the only orientation I could find a guide star for the AO7. In May of 2013, I shot Red and Blue but the skies clouded up and I never did get to do the green. I did a synthetic green channel. This is one of my favorite galaxies.

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M51 - The Whirlpool Galaxy, Bill Worley