Science Fair Project Encyclopedia
Sagittarius A*
Sagittarius A* is a bright and very compact source of radio emission at the centre of the Milky Way Galaxy, part of a larger astronomical feature at that location (Sagittarius A). Although not completely certain, it is regarded by most astronomers to be a supermassive black hole, composed of matter equivalent to about a million suns (our sun's mass is approximately 2 x 1030 kg, making Sagittarius A* 2 x 1036 kg).
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10-26-2009 08:16:03
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The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details