| 翻訳と辞書 |
HD 9446
HD 9446 is a star located about 171 light-years away in the constellation of Triangulum. It is a G-type main sequence star with a stellar classification of G5V. The physical properties this star appear similar to the Sun, making it a candidate solar twin. However, the measured abundance of elements with more mass than helium is above the accepted range.〔 The amount of activity measured in the chromosphere corresponds to a star with a rotation period of about 10 days.〔
== Planetary system ==
On 5 January 2010, scientists announced the discovery of two planets orbiting around HD 9446.〔
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「HD 9446」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.
|
|