A face-on spiral galaxy, M101 aka the Pinwheel galaxy is at 21 million light years away in Ursa major and contains about 1 trillion stars. This image is a stack of sixty 2-min exposures.
A face-on spiral galaxy, M101 aka the Pinwheel galaxy is at 21 million light years away in Ursa major and contains about 1 trillion stars. This image is a stack of sixty 2-min exposures.