• The MLO 40-inch telescope is a
Cassegrain reflector built by Astro Mechanics in 1966. It was originally fitted with a
primary mirror which has since been replaced. It is known informally as the Illinois telescope because it was located at UIUC's
Prairie Observatory until 1981.
Future telescopes • The 50-inch Phillips Claud telescope. Originally planned in 2009, installation of the telescope began in late 2013. , the telescope installation had not been completed.
Former telescopes • A telescope built by
Boller and Chivens was the first telescope at the observatory, and was replaced by the Claud telescope. • A telescope built by Nishimura and used by visitors was moved to the UCSD campus in 1988. It was replaced by the Buller telescope. • The Ultra-Light Technology for Research in Astronomy (ULTRA) telescope was a test bed for lightweight
carbon fiber mirrors. It was located in the 0.4 m Boller and Chivens building from 2006–2008. Before it was installed, the original dome was replaced with a larger one, and the mount upgraded. The project was collaboration of SDSU, KU,
Dartmouth College, and Composite Mirror Applications, Inc. (CMA) of
Tucson, Arizona. == See also ==