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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 1817 Katanga ： ウィキペディア英語版 1817 Katanga 1817 Katanga, provisional designation 1939 MB, is a stony asteroid in from the inner regions of the asteroid belt. It was discovered by English-born South African astronomer Cyril Jackson at Johannesburg Union Observatory, South Africa on 20 June 1939.〔 It belongs to the small group of asteroids of the Phocaea family and measures about 16 kilometers in diameter, although observations from the Akari satellite gave a much lower size.〔〔〔〔 The S-type asteroid orbits the Sun at a distance of 1.9–2.8 AU once every 3 years and 8 months (1,334 days). Its eccentric orbit is inclined by 26 degrees to the ecliptic plane.〔 '' Katanga'' has a rotation period between 6.3 and 8.5 hours, depending on different measurements〔〔〔 and a relatively high geometric albedo of 0.34,〔〔 despite seemingly inaccurate data from older observations made by the Infrared Astronomical Satellite, IRAS.〔 The asteroid was named after the Katanga Province, a rich mining region in the Democratic Republic of the Congo, Africa.〔 == 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「1817 Katanga」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.