Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  M 106  ·  NGC 4248  ·  NGC 4258
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M106, Edward Overstreet
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M106, Edward Overstreet
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Description

M106 Galaxy.... It took 14 hours of total imaging time to get this deep space gem! Messier 106 is about 22 to 25 million light years distant, and is receding at 537 km/sec. It may be a member of the Ursa Major cloud, a loose agglomeration of galaxies which also includes M 108 and M 109. A supernova (1981K) occurred in M106 in August of 1981 and reached 16th magnitude.

Since the 1950s, M 106 has been known as a source of radio emission, and appears much larger in radio radiation than in visible light. It is also a Seyfert galaxy: due to unusual emission lines in its spectrum, discovered by Carl Seyfert in 1943, we now suspect that matter in the galaxy is falling into a supermassive black hole at its center. This massive object contains a mass of 40 million Suns within a volume of about 1/24 to 1/12 light-years in radius.

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M106, Edward Overstreet