In the constellation Sagittarius
4.1 million times the mass of the Sun
Diameter roughly 15 million miles (24 million km).
The supermassive black hole at the center of our Milky Way galaxy lies behind dense clouds of gas and dust. The center of the galaxy is a little above the "spout" of the teapot-shaped constellation Sagittarius at the upper right of this photograph. It's about 27,000 light-years away. Recent observations show that the black hole occasionally produces flares of energy, perhaps caused by its complex magnetic field. [Akira Fujii]
This document was last modified: August 21, 2006.