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Triangulum II : ウィキペディア英語版 | Triangulum II
Triangulum II (Tri II or Laevens 2) is a dwarf galaxy close to the Milky Way Galaxy. It contains only 1000 stars, yet is quite massive, having a solar mass to light ratio of 3600.〔 This is an unusually high mass for such a small galaxy.〔 〕 The distance from the centre of the Milky Way is . The luminosity is 450 times that of the Sun.〔 〕 This makes it one of the dimmest known galaxies.〔 The 2D half light radius is . The galaxy was discovered in images taken by Pan-STARRS by Benjamin P. M. Laevens in 2015.〔 〕〔 ==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「Triangulum II」の詳細全文を読む
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