Angell Hall Observatory
Encyclopedia
Angell Hall Observatory is an astronomical
Astronomy
Astronomy is a natural science that deals with the study of celestial objects and phenomena that originate outside the atmosphere of Earth...

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

 owned and operated by University of Michigan
University of Michigan
The University of Michigan is a public research university located in Ann Arbor, Michigan in the United States. It is the state's oldest university and the flagship campus of the University of Michigan...

. It is located on the UM Central Campus on top of Angell Hall in Ann Arbor, Michigan
Michigan
Michigan is a U.S. state located in the Great Lakes Region of the United States of America. The name Michigan is the French form of the Ojibwa word mishigamaa, meaning "large water" or "large lake"....

 (USA). It now has a computer-controlled 0.4-m Cassegrain telescope in its single dome, but in the past has housed a large, clock-driven refracting telescope
Refracting telescope
A refracting or refractor telescope is a type of optical telescope that uses a lens as its objective to form an image . The refracting telescope design was originally used in spy glasses and astronomical telescopes but is also used for long focus camera lenses...

 and a reflecting telescope
Reflecting telescope
A reflecting telescope is an optical telescope which uses a single or combination of curved mirrors that reflect light and form an image. The reflecting telescope was invented in the 17th century as an alternative to the refracting telescope which, at that time, was a design that suffered from...

 in side-by-side domes. The current telescope was manufactured by DFM Engineering
DFM Engineering
DFM Engineering is an American telescope and optics manufacturer. DFM Engineering was founded in 1979 by Dr. Frank Melsheimer. DFM makes medium size Cassegrain telescopes and their associated systems including telescope optics, control systems, and mounts. A range of pre-designed telescopes are...

 and installed in December 1994.

The "Observatories of the University of Michigan" include the Detroit Observatory
Detroit Observatory
The Detroit Observatory sits 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...

 (1854), the Angell Hall Observatory (1927), the Lamont-Hussey Observatory (South Africa
South Africa
The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

, 1928) and the McMath-Hulbert Observatory
McMath-Hulbert Observatory
The McMath-Hulbert Solar Observatory is a decommissioned 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 Hulbert...

 (Lake Angelus, MI, 1930).

External links

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