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The 61" telescope operated by the Steward Observatory of the University of Arizona lies at an elevation of 8230 feet on Mount Bigelow in the Catalina Mountains north of Tucson, sharing the site with the Catalina Schmidt. It was built in the early 1960's to survey the Moon in preparation for the upcoming lunar spacecraft missions.

2024年7月3日 · To help realize this goal, Steward Observatory of the University of Arizona contributed optical data for the LAT-monitored blazars and Fermi Targets of Opportunity (ToOs) during the first decade of its mission as part of the Guest Investigator Program.

The 90" (2.3 m) Bok Telescope on Kitt Peak is the largest telescope operated solely by Steward Observatory. The telescope was dedicated on June 23, 1969 (see Sky & Telescope 34 , 79 [1967] and 38, 164 [1969]) and on April 28, 1996 was officially named in honor of Prof. Bart Bok, director of Steward Observatory 1966-1969.

The 60" Cassegrain reflector operated by the Steward Observatory of The University of Arizona lies at an elevation of nearly 2800 m at the summit of Mount Lemmon in the Catalina Mountains north of Tucson. It consists of an f/2 parabolic primary mirror with two interchangeable secondaries to achieve Cassegrain focal ratios of either f/16 or f/45.

Steward Observatory is currently commissioning a prime focus wide-fleld imager for the 90-inch telescope located at Kitt Peak. The camera’s focal plane array is populated with a mosaic of four thinned Lockheed 4096£4096 pixel CCDs. The f/2.98 system provides a plate scale of 0:4500/pixel and a total fleld-of-view of 1:16–£1:16–. The

"Data from the Steward Observatory spectropolarimetric monitoring project were used. This program is supported by Fermi Guest Investigator grants NNX08AW56G, NNX09AU10G, NNX12AO93G, and NNX15AU81G."

Steward Observatory 933 N Cherry Ave., Rm. N413 Tucson AZ 85721-0065 . Phone: (520) 621-4409 Fax: (520) 621-9843 Shipping Address: Steward Observatory Annex 1540 E. Second Street Tucson, AZ 85721-0064 For website-related issues contact [email protected] . Maps Visiting the UA Campus? Click Here for Information. Campus map

This program is among the highest ranked by the Steward Observatory TAC. If you are contacted while observing requesting timely observations of a potential visible counterpart to a gravitational wave event, please consider collaborating with this research team.

By 1963, the Steward Observatory’s once solitary, dark-sky setting had been encroached upon by an expanding Tucson and an expanding campus necessitating a move to Kitt Peak—now the site of much of University of Arizona astronomy, along with much international work.