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physical object > artifact > device > instrument > artificial satellite > space telescope > X-ray space telescope > grazing-incidence telescope > ROSAT |
ROSAT comparison table |
Subject | is a kind of | is an instance of | has definition |
---|---|---|---|
grazing-incidence telescope | X-ray space telescope | A telescope used in X-ray and gamma-ray astronomy. It focuses these rays by making use of the fact that they behave like light rays if they strike surfaces at a shallow enough angle. | |
ROSAT | grazing-incidence telescope | ROentgen SATellite, was an X-ray observatory developed through a cooperative program between the Germany, the United States, and the United Kingdom. The satellite was designed and operated by Germany, and was launched by the United States on June 1, 1990. It was turned off on February 12, 1999. |
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