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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 1805 Dirikis ： ウィキペディア英語版 1805 Dirikis 1805 Dirikis, provisional designation 1970 GD, is a stony asteroid from the outer region of the asteroid belt, about 26 kilometers in diameter. It was discovered by Russian astronomer Lyudmila Chernykh at the Crimean Astrophysical Observatory in Nauchnyj on 1 April 1970.〔 The S-type asteroid belongs to the Themis family. It orbits the Sun at a distance of 2.8–3.5 AU once every 5 years and 7 months (2,032 days). Several observations gave a varying albedo from 0.082 to 0.15. It has a rotation period of about 23 hours, depending on the respective measurements.〔〔 The asteroid was named after Matiss A. Dirikis (1923–1993), who was a member of the Astronomical Observatory at the University of Latvia, and chairman of the Latvian branch of the ''Astronomical–Geodetical Society of the U.S.S.R.''. His work on the motion of small Solar System bodies also contributed to the field of theoretical astronomy.〔 == 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「1805 Dirikis」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.