00000000, 00000000, 00000000, 00000000, 00000000 0, 0, 0, 0, 0 ------------------------- McDonald Observatory McDonald Observatory, near Fort Davis, Tex., was founded in 1938 in affiliation with the University of Texas. It is the site of several powerful telescopes, including 107-in (2.7-m), 82-in (2.1-m), 36-in (0.91-m), and 30-in (0.76-m) optical telescopes and a 16-ft (4.9-m) dish for radio astronomy in the millimeter range of the spectrum. Work has been done at the observatory on the polarization of light by interstellar matter; galactic superclusters; flare stars; cataclysmic variables; stellar brightness; the rotation period of Uranus and Neptune; the atmosphere of one of Jupiter's satellites, Io; and optical and photometric technology. Bibliography: Williams, Roger C., McDonald Observatory (1970).