1968 OG. Discovered 1968 July 18 by C. Torres at Cerro El Roble.
Named in memory of the German astronomer Friedrich Wilhelm Ristenpart (1868-1913), appointed in 1906 as director of the Observatorio Astronomico Nacional in Santiago with the mission to modernize it. He accomplished the move from the downtown site of Quinta Normal to Lo Espejo, about 13 km south of the city. Of the 1260 plates assigned to the Santiago zone of the Astrographic Catalogue, 745 were taken before his untimely death. A series of fifty charts showing southern-hemisphere stars down to tenth magnitude is known as the Carta de Ristenpart. (M 10546)
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