Angell Hall Observatory is an astronomical

observatory An observatory is a location used for observing terrestrial, marine, or celestial events. Astronomy, climatology/meteorology, geophysical, oceanography and volcanology are examples of disciplines for which observatories have been constructed. His ...

owned and operated by

University of Michigan , mottoeng = "Arts, Knowledge, Truth" , former_names = Catholepistemiad, or University of Michigania (1817–1821) , budget = $10.3 billion (2021) , endowment = $17 billion (2021)As o ...

. It is located on the UM Central Campus on top of

Angell Hall Angell Hall is an academic building at the University of Michigan in Ann Arbor, United States. It was previously connected to the University Hall building, which was replaced by Mason Hall and Haven Hall. Angell Hall is named in honor of James B ...

Ann Arbor, Michigan Ann Arbor is a city in the U.S. state of Michigan and the county seat of Washtenaw County, Michigan, Washtenaw County. The 2020 United States census, 2020 census recorded its population to be 123,851. It is the principal city of the Ann Arbor ...

(US). It has a computer-controlled 0.4-m

Cassegrain telescope The Cassegrain reflector is a combination of a primary concave mirror and a secondary convex mirror, often used in optical telescopes and radio antennas, the main characteristic being that the optical path folds back onto itself, relative to the ...

in its single dome, and a small radio telescope on the roof. In the past it has housed a large, clock-driven

refracting telescope A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens (optics), lens as its objective (optics), objective to form an image (also referred to a dioptrics, dioptric telescope). The refracting telescope d ...

and a reflecting telescope in side-by-side domes. The current telescope was manufactured by

DFM Engineering DFM Engineering is an American telescope and optics manufacturer founded in 1979 by Frank Melsheimer in Longmont, Colorado. DFM makes medium size Cassegrain telescopes and their associated systems including telescope optics, control systems, and ...

and installed in December 1994. Other observatories that UM has operated include the

Detroit Observatory The Detroit Observatory is located on the corner of Observatory and Ann streets in Ann Arbor, Michigan. It was built in 1854, and was the first scientific research facility at the University of Michigan and one of the oldest observatories of its ty ...

(1854), the

Lamont–Hussey Observatory The Lamont–Hussey Observatory (LHO) was an astronomical observatory owned and operated by the University of Michigan (UM). It was located in the city of Bloemfontein, Free State, South Africa. Construction at the site began in 1927, and the f ...

(

South Africa South Africa, officially the Republic of South Africa (RSA), is the southernmost country in Africa. It is bounded to the south by of coastline that stretch along the South Atlantic and Indian Oceans; to the north by the neighbouring countri ...

, 1928), the

McMath–Hulbert Observatory The McMath-Hulbert Solar Observatory is a solar observatory in Lake Angelus, Michigan, USA. It was established in 1929 as a private observatory by father and son Francis Charles McMath and Robert Raynolds McMath and their friend, Judge Henry Hul ...

(

Lake Angelus, Michigan Lake Angelus is a city in Oakland County in the U.S. state of Michigan. It is an affluent suburb of Detroit, with one of the highest per capita incomes of any community in the state. History In the early 1900s, a small community formed around t ...

, 1930), the Portage Lake Observatory (near Dexter, Michigan, 1948), and the

Peach Mountain Observatory The Peach Mountain Observatory (PMO) is an astronomical observatory owned and operated by the University of Michigan (UM). It is located near the village of Dexter, Michigan (USA), about northwest of Ann Arbor. It was opened in 1955, and is used ...

(near Dexter, Michigan, 1958).

References

External links

Ann Arbor Clear Sky Clock
Weather forecast for observing conditions.

Astronomical observatories in Michigan {{GeoGroup Michi Buildings and structures in Michigan by type Tourist attractions in Michigan Education in Michigan ...

University of Michigan campus Tourist attractions in Ann Arbor, Michigan 1927 establishments in Michigan {{US-observatory-stub

See also

References

External links