Hartung-Boothroyd Observatory
Encyclopedia
The Hartung–Boothroyd Observatory (HBO) is located atop Mount Pleasant near the Cornell University
Cornell University
Cornell University is an Ivy League university located in Ithaca, New York, United States. It is a private land-grant university, receiving annual funding from the State of New York for certain educational missions...

 in Ithaca
Ithaca, New York
The city of Ithaca, is a city in upstate New York and the county seat of Tompkins County, as well as the largest community in the Ithaca-Tompkins County metropolitan area...

, New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

 (USA). It is used mainly as a teaching facility for upper-level astronomy
Astronomy
Astronomy is a natural science that deals with the study of celestial objects and phenomena that originate outside the atmosphere of Earth...

 classes. The 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...

 is named in honor of M. John Hartung and Samuel L. Boothroyd. The telescope
Telescope
A telescope is an instrument that aids in the observation of remote objects by collecting electromagnetic radiation . The first known practical telescopes were invented in the Netherlands at the beginning of the 1600s , using glass lenses...

 construction began in the 1930s
1930s
File:1930s decade montage.png|From left, clockwise: Dorothea Lange's photo of the homeless Florence Thompson show the effects of the Great Depression; Due to the economic collapse, the farms become dry and the Dust Bowl spreads through America; The Battle of Wuhan during the Second Sino-Japanese...

 and the observatory was built in 1974. The facility contains a 25-inch telescope and is equipped with various instruments.

The main mirror was constructed as 1/8-scale practice before making the 200-inch Palomar Observatory
Palomar Observatory
Palomar Observatory is a privately owned observatory located in San Diego County, California, southeast of Pasadena's Mount Wilson Observatory, in the Palomar Mountain Range. At approximately elevation, it is owned and operated by the California Institute of Technology...

 mirror. This test mirror sat in storage for many years before being put to good use at HBO.

Nearby observatories

  • Clinton B. Ford Observatory
    Clinton B. Ford Observatory
    This article is about the New York observatory. For the California location see Ford Observatory .The Clinton B. Ford Observatory is an astronomical observatory that is operated by the Ithaca College physics department. The observatory is located in the forest on the south end of the Ithaca...

    , Ithaca College
    Ithaca College
    Ithaca College is a private college located on the South Hill of Ithaca, New York. The school was founded by William Egbert in 1892 as a conservatory of music. The college has a strong liberal arts core, but also offers several pre-professional programs and some graduate programs. The college is...

    , Ithaca
    Ithaca, New York
    The city of Ithaca, is a city in upstate New York and the county seat of Tompkins County, as well as the largest community in the Ithaca-Tompkins County metropolitan area...

    , New York
    New York
    New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

  • Fuertes Observatory
    Fuertes Observatory
    Fuertes Observatory is an observatory located on the North Campus of Cornell University in Ithaca, New York. The observatory was completed in fall of 1917 and was originally used by the Civil Engineering Department as an instructional field office for navigation and surveying...

    , Cornell University
    Cornell University
    Cornell University is an Ivy League university located in Ithaca, New York, United States. It is a private land-grant university, receiving annual funding from the State of New York for certain educational missions...

    , Ithaca
    Ithaca, New York
    The city of Ithaca, is a city in upstate New York and the county seat of Tompkins County, as well as the largest community in the Ithaca-Tompkins County metropolitan area...

    , New York
    New York
    New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

  • Kopernik Space Education Center
    Kopernik Space Center
    The Kopernik Space Education Center is an observatory in Vestal, New York. In addition to operating a scientific observatory, the facility also provides outreach programs for community children, educating them about astronomy and science....

    , Vestal
    Vestal, New York
    Vestal is a town within Broome County in the Southern Tier of New York, and lies between the Susquehanna River and the Pennsylvania border. As of the 2000 census, the population was 26,535, estimated to have grown to 27,369 in 2009....

    , New York
    New York
    New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

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