| 翻訳と辞書 |
1319 Disa
1319 Disa, provisional designation 1934 FO, is an assumed carbonaceous asteroid from the outer region of the asteroid belt, about 25 kilometers in diameter. It was discovered by English-born, South African astronomer Cyril Jackson at the Union Observatory, Johannesburg, on 19 March 1934.〔
The asteroid orbits the Sun at a distance of 2.4–3.6 AU once every 5 years and 2 months (1,883 days). Its orbit shows an eccentricity of 0.21 and is tilted by 3 degrees to the plane of the ecliptic. It has a well-defined rotation period of 7.08 hours.〔〔〔
The asteroid is one of the cases, where the Collaborative Asteroid Lightcurve Link (CALL) strongly disagrees with the (interpreted) observational data collected by space-based mission. While publications based on results from the Akari and WISE satellites assign a geometric albedo of 0.10 and 0.11, including and outlier of 0.39, CALL assumes the body to be carbonaceous with an albedo of only 0.06. This leads to notable discrepancies for the body's derived size, where CALL calculates a significantly larger diameter of 42 kilometers, compared to the 17–26 kilometers from the published satellite surveys ''(also see infobox for an overview)''.〔〔〔〔
The minor planet was named after Disa, also known as "African weed-orchid", a large genus of more than a hundred tropical orchids, common in southern 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「1319 Disa」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.
|
|