翻訳と辞書 |
354 Eleonora : ウィキペディア英語版 | 354 Eleonora
354 Eleonora is a large, stony main-belt asteroid that was discovered by the French astronomer Auguste Charlois on January 17, 1893, in Nice.〔 Photometric observations of this asteroid gave a light curve with a period of 13.623 hours. The data was used to construct a model for the asteroid, revealing it to be a regular-shaped object, spinning about a pole with ecliptic coordinates (β, λ) = (+20°, 356°), although this is with an accuracy of only ±10°. The ratio of the major to minor axes lengths is roughly equal to 1.2.〔 It is classified as an S-type asteroid and has an estimated size of 154.34 km.〔 The spectrum of 354 Eleonora reveals the strong presence of the mineral Olivine, a relatively rarity in the asteroid belt.〔 During favorable oppositions, such as in 1968 and 2010, Eleonora can reach an apparent magnitude of +9.31. ==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「354 Eleonora」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.
|
|