In the constellation Sagittarius
4.1 million times the mass of the Sun
Diameter roughly 15 million miles (24 million km).
Gas and dust spirals toward the black hole at the center of the Milky Way in this composite visible and infrared image from two space telescopes. The disk is several light-years wide, and may be giving birth to new stars in its outer regions. [NASA/ESA/Q.D. Wang (Univ. Mass.-Amherst)/JPL/S. Stolovy (SSC/Caltech)]
This document was last modified: January 6, 2009.