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BRADLEY, JAMES (1693–1762)

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Originally appearing in Volume V04, Page 373 of the 1911 Encyclopedia Britannica.
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BRADLEY, See also:JAMES (1693–1762) , See also:English astronomer, was See also:born at See also:Sherborne in See also:Gloucestershire in See also:March 1693. He entered Balliol See also:College, See also:Oxford, on the 15th of March 1711, and took degrees of B.A. and M.A. in 1714 and 1717 respectively. His See also:early observations were made at the rectory of See also:Wanstead in See also:Essex, under the tutelage of his See also:uncle, the Rev. James See also:Pound (1669–1724), himself a skilled astronomer, and he was elected a See also:fellow of the Royal Society on the 6th of See also:November 1718. He took orders on his presentation to the vicarage of Bridstow in the following See also:year, and a small See also:sinecure living in See also:Wales was besides procured for him by his friend See also:Samuel See also:Molyneux (1689–1728). He, however, resigned his ecclesiastical preferments in 1721, on his See also:appointment to the Savilian professorship of See also:astronomy at Oxford, while as reader on experimental See also:philosophy (1729–1760) he delivered 79 courses of lectures in the Ashmolean museum. His memorable See also:discovery of the See also:aberration of See also:light (see ABERRATION) was communicated to the Royal Society in See also:January 1729 (Phil. Trans. See also:xxxv. 637). The observations upon which it was founded were made at Molyneux's See also:house on See also:Kew See also:Green. He refrained from announcing the supplementary detection of See also:nutation (q.v.) until the 14th of See also:February 1748 (Phil. Trans. x1v.

I), when he had tested its reality by See also:

minute observations during an entire revolution (18.6 years) of the See also:moon's nodes. He had meantime (in 1742) been appointed to succeed See also:Edmund See also:Halley as astronomer royal; his enhanced reputation enabled him to apply successfully for an instrumental outfit at a cost of £r000; and with an 8-See also:foot quadrant completed for him in 1750 by See also:John See also:Bird (1709–1776), he accumulated at See also:Greenwich in ten years materials of inestimable value for the reform of astronomy. A See also:crown See also:pension of £250 a year was conferred upon him in 1752. He retired in broken See also:health, nine years later, to Chalford in Gloucestershire, and there died on the 13th of See also:July 1762. The See also:printing of his observations was delayed by disputes about their ownership; but they were finally issued from the See also:Clarendon See also:Press, Oxford, in two foliovolumes (1798, 18o5). The insight and See also:industry of F. W. See also:Bessel were, however, needed for the development of their fundamental importance. See also:Rigaud's Memoir prefixed to See also:Miscellaneous See also:Works and See also:Correspondence of James Bradley, D.D. (Oxford, 1832), is practically exhaustive. Other See also:sources of See also:information are: New and See also:General See also:Biographical See also:Dictionary, xii. 54 (1767) ; Biog.

Brit. (See also:

Kippis) ; Fouchy's " Eloge," See also:Paris See also:Memoirs (1762), p. 231 (Histoire); See also:Delambre's Hist. de l'astronomie au zb''M1' siecle, p. 413.

End of Article: BRADLEY, JAMES (1693–1762)

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