~Black Hole Mass Measurement

By: The Editors of Sky & Telescope July 7, 2006 0

Even though it is nearly 100-million light-years distant in the constellation Ursa Major, this Seyfert type galaxy named NGC 3516 has been observed to have a super-massive black hole lurking within it estimated to be over 10-million times the mass of the Sun.

HST/ UCLA/ M. Malkan

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