Sommers–Bausch Observatory

Sommers–Bausch Observatory is an astronomical observatory operated by the University of Colorado, Boulder on its main campus. The building was initially completed in 1953 and named after Elmer E. Sommers and Carl L. Bausch.

It is operated by the university's Department of Astrophysical and Planetary Sciences (APS), which primarily utilizes the facilities and equipment of the observatory for teaching as well as some research. Telescopes include two 20" Planewave CDK telescopes on Software Bisque Taurus 500 encoder mounts, a 24" Boller and Chivens Cassegrain reflectors, and a 10-inch aperture heliostat (solar telescope). The observatory also possesses multiple smaller telescopes and ancillary equipment. The observatory also houses the lab classroom and the computer lab for the APS department.