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Charles Dillon Perrine
Charles Dillon Perrine
|Died||June 21, 1951 83)(aged|
|Known for|| Himalia |
Charles Dillon Perrine (July 28, 1867 – June 21, 1951) was an American astronomer living in Argentina. He won the Lalande Prize in 1897.
Born in Steubenville, Ohio, a son of Peter and Elizabeth McCauley Perrine,and a descendant of Daniel Perrin, "The Huguenot", he worked at Lick Observatory in California from 1893 to 1909 and then was director of the Argentine National Observatory (today, Observatorio Astronómico de Córdoba) in Argentina from 1909 until 1936.
Between 1900 and 1908, Perrine accompanied four eclipse expeditions and was in charge of the one sent from Lick Observatory to Sumatra in 1901. Also in 1901, he and George Ritchey observed the apparent superluminal motion in the nebulosity surrounding Nova Persei 1901.
He discovered two moons of Jupiter, today known as Himalia (on December 3, 1904) and Elara (in 1905). They were simply designated "Jupiter VI" and "Jupiter VII" and were not given their present names until 1975.
Perrine co-discovered the lost periodic comet 18D/Perrine-Mrkos and several other comets. Antonín Mrkos later named the asteroid 6779 Perrine after him. The lunar crater Perrine is also named after him.
He promoted the study of astrophysics in Argentina and pushed for the construction of a large telescope (the Bosque Alegre telescope), which however was not completed until 1942 (he had retired in 1936). He remained in Argentina after retirement and died there, in Villa General Mitre (which has since been renamed to its original name of Villa del Totoral). He is buried in the Cementerio de Disidentes in the city of Córdoba.
Elara is a prograde irregular satellite of Jupiter. It was discovered by Charles Dillon Perrine at Lick Observatory in 1905. It is the eighth-largest moon of Jupiter and is named after Elara, one of Zeus's lovers and the mother of the giant Tityos.
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18D/Perrine–Mrkos is a periodic comet in the Solar System, originally discovered by the American-Argentine astronomer Charles Dillon Perrine on December 9, 1896. For some time it was thought to be a fragment of Biela's Comet.
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