Supermassive black holes

http://astrothesaurus.org/uat/1663

dcterms modified equal to or less than 2020-11-04T18:56:03.596Zequal to or more than 2020-11-04T18:56:03.596Z
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http://astrothesaurus.org/uat/98 original
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definition A black hole of tremendous mass, equivalent to those of millions or even billions of stars, which is believed to exist and occupy the centers of many galaxies. The supermassive black hole residing in the center of our Milky Way Galaxy is the object Sgr A* with a mass of 4 x 10^6 solar masses within a radius of 100 astronomical units.
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http://astrothesaurus.org/uat/1319 original
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contributor AAS_Frey.Katie_Admin original