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Kuffner Observatory
The Kuffner observatory is one of two telescope-equipped public astronomical observatories situated in Austria's capital, Vienna. It is situated in the West of the city's Ottakring district, on the slope of the Gallitzinberg at 302 m altitude. Originally a private research institution, it was converted into an educational astronomy facility after World War II as buildings and city lights had encroached to a degree that severely hampered scientific nightsky observations. Today the main tasks of the observatory consist in public education on astronomy, operating and preserving the historical equipment, and minor projects in scientific astronomy.
==Scientific achievements==
The Kuffner observatory was constructed from 1884-1886 according to plans of Franz Ritter von Neumann. Originally it was a private research institution for which the philanthropic head of the Kuffner brewery dynasty from Lundenburg, Moriz von Kuffner financed the construction (including extensions built in 1889-1890), the equipment, and also the operation.
During the years leading up to World War I the observatory became one of the most important astronomy sites in the Austro-Hungarian monarchy, and established a considerable international reputation. Carl Wilhelm Wirtz, Leo Anton Karl de Ball, Samuel Oppenheim, and most notably Karl Schwarzschild spent parts of their careers here. During his assistantship at the Kuffner observatory, Schwarzschild – who would later become the “grandfather of black hole theory”—developed a formula that allowed to calculate the relation between the intensity of faint astronomical light sources, the exposure time, and the degree of opacity created in photographic emulsions.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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