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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク 1851 Lacroute ： ウィキペディア英語版 1851 Lacroute 1851 Lacroute, provisional designation 1950 VA, is an asteroid from the outer region of the asteroid belt, about 17 kilometers in diameter. It was discovered on 9 November 1950 by French astronomer Louis Boyer at the Algiers Observatory in the capital of Algeria, Northern Africa.〔 The asteroid orbits the Sun at a distance of 2.5–3.7 AU once every five and a half years (1,997 days). The somewhat eccentric orbit of 0.19 is nearly coplanar with the ecliptic, tilted by only 1.7 degrees. ''Lacroute'' has a geometric albedo of 0.075, as measured by the Infrared Astronomical Satellite, IRAS.〔 It was named in honor of French astronomer Pierre Lacroute (1906–1993), a known astrometrist, president of IAU's Commission 24 in the 1970s, and director of the Observatory of Strasbourg, instrumental in the establishment of the Stellar Data Center ''(also see SIMBAD)''. He also made an independent reduction of the astrometric star catalogue AGK3, using a technique involving overlapping photographic plates.〔 == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1851 Lacroute」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.