翻訳と辞書 |
K2-21b
K2-21b also known as EPIC 206011691 b is an exoplanet orbiting K2-21 a red dwarf, every 9.3 days 212 ly away.〔〔http://exoplanet.eu/catalog/epic-206011691_b/〕 It has a density of 2.7g/cm3 indicating that it is not a rocky planet.〔 However, there error is rather large, with a possible density between 1.1 and 6.4 g/cm3, so the nature of its composition is still uncertain. ==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「K2-21b」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.
|
|