In the constellation Sagittarius
4.1 million times the mass of the Sun
Diameter roughly 15 million miles (24 million km).
A look at the core of the Milky Way from the orbiting Chandra X-Ray Observatory. The black hole is near the center of the image, which shows hot stars and large clouds of hot gas. [NASA/CXC/MIT/F.K. Baganoff et.al.]
This document was last modified: October 24, 2005.