polar-ring galaxy
常見(jiàn)例句
- Over 20 million light-years away, its peculiar appearance marks it as a polar ring galaxy.
它距我們超過(guò) 2 千萬(wàn)光年之遠(yuǎn)，其獨(dú)特的外形給它帶來(lái)了極環(huán)星系的名字。 - Explanation: NGC 2685 is a confirmed polar ring galaxy - a rare type of galaxy with stars, gas and dust orbiting in rings perpendicular to the plane of a flat galactic disk.
NGC 2685是被確認(rèn)的極環(huán)星系-一種罕有的由恒星、氣團(tuán)和星塵圍繞垂直于星河盤狀平面的環(huán)運(yùn)動(dòng)的星系。
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