Andrew Claude de la Cherois Crommelin
12:28, 6 June 2013 (UTC)12:28, 6 June 2013 (UTC)~~
||This article needs additional citations for verification. (December 2009)|
Andrew Claude de la Cherois Crommelin (February 6, 1865 – September 20, 1939) was an astronomer of French and Huguenot descent. He was born in Cushendun, Co. Antrim, Ireland  and educated in England at Marlborough College and Trinity College, Cambridge. He worked at the Royal Greenwich Observatory and went on several solar eclipse expeditions. He was president of the Royal Astronomical Society from 1929 to 1931.
AC de la Cherois Crommelin had four children, of whom two were killed in a climbing accident on Pillar Rock, Ennerdale, in 1933. The de la Cherois line was succeeded through Crommelin's daughter Andrina de la Cherois Crommelin (m. Ritter).
An expert on comets, his calculation of orbits of what were then called Comet Forbes 1928 III, Comet Coggia-Winnecke 1873 VII, and Comet Pons 1818 II, in 1929, showed that these comets were one and the same periodic comet. The comet thus received the rather unwieldy name "Comet Pons-Coggia-Winnecke-Forbes". In 1948, he was posthumously honored when the comet was renamed after him alone (today, in modern nomenclature, it is designated 27P/Crommelin). This is similar to the case of Comet Encke, where the periodic comet is named after the person determining the orbit rather than the possibly-multiple discoverers and re-discoverers at each apparition.
Named after Crommelin
- Venn, J.; Venn, J. A., eds. (1922–1958). "Crommelin, Andrew Claude [D'Elacherois or De La Cherois]". Alumni Cantabrigienses (10 vols) (online ed.). Cambridge University Press.
|This article about a British astronomer is a stub. You can help Wikipedia by expanding it.|