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Messier 81 in Ursa Major
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M 81 is a spiral galaxy in the constellation Ursa Major was discovered by Johann Elert Bode in the 18th century. Current estimates indicate M 81 is approximately 11 million light years away. The dim companion galaxy Holmberg IX (UGC 5336) can be seen as a small blue smudge above M 81. The image was taken with a 130 mm f/8 Astro-Physics refractor with a total combined exposure of 7 hrs 40 minutes (92 x 5 min lights; 30 darks; 64 flats; SBIG ST 2000xcm @ -25 0C; AP 1200 mount)
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