![Cassiopeia A](http://upload.wikimedia.org/wikipedia/commons/thumb/4/4f/Orion_Belt.jpg/360px-Orion_Belt.jpg)
Orion's Belt or The Belt of Orion is an asterism in the constellation Orion. It consists of the three bright stars Alnitak, Alnilam, and Mintaka. The color picture was composited from photographic plates taken using the Samuel Oschin telescope at Palomar Observatory between 1987 and 1991.