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Galaxy M 82

The irregular starburst galaxy M 82 is a neighbor of M 81. It is surrounded by a dust cloud. Caused by a close fly by of the bigger galaxy M 81 200 million years ago was a high stellar birth rate and the outcast of enormous amounts of gas, 5.6 million solar masses.
At about 600 light-years distance from the center a Black Hole with maybe 500 solar masses is assumed.

Constellation: Ursa Major
Distance: 12 million light-years
Visual magnitude: 9.2
Diameter: circa 25 000 light-years
Type: Irr

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    M 82
Photo: Subaru Telescope, NAO Japan

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