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APOD

Astronomy Picture of the Day

Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.

See Explanation. Clicking on the picture will download the highest resolution version available.

The Galactic Center in Infrared

Explanation: The center of our Galaxy is a busy place. In visible light , much of the Galactic Center is obscured by opaque dust . In infrared light , however, dust glows more and obscures less, allowing nearly one million stars to be recorded in the above photograph . The Galactic Center itself appears on the right and is located about 30,000 light years away towards the constellation of Sagittarius . The Galactic Plane of our Milky Way Galaxy , the plane in which the Sun orbits, is identifiable by the dark diagonal dust lane . The absorbing dust grains are created in the atmospheres of cool red-giant stars and grow in molecular cloud s. The region directly surrounding the Galactic Center glows brightly in radio and high-energy radiation , and is thought to house a large black hole .

Date September 7, 2003
Credit Credit: 2MASS Project , UMass , IPAC/Caltech , NSF , NASA
Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
A service of: ASD at NASA / GSFC,
NASA Science Activation & Michigan Tech. U.