M 101 - The Pinwheel Galaxy

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The Pinwheel Galaxy (also known as Messier 101 or NGC 5457) is a face-on spiral galaxy distanced 25 million light-years (eight megaparsecs) away in the constellation Ursa Major. This is a LRGB image resp. 20, 20 30 and 30 minutes.

M 101 - The Pinwheel Galaxy