MDM Observatory

The MDM Observatory is an optical astronomical observatory located adjacent to Kitt Peak National Observatory on Kitt Peak, west of Tucson, Arizona, in the United States. It is owned and operated by the University of Michigan, Dartmouth College, Ohio State University, Columbia University, and Ohio University. The Massachusetts Institute of Technology was also part of the operating consortium in the past.

It has two reflecting telescopes, the 2.4-meter (95 inches aperture Hiltner Telescope, used for galactic surveys, and the 1.3-meter McGraw–Hill Telescope, which was originally located near Ann Arbor, Michigan.