perigalacticum

名词 n.
中文释义

英文释义

名词 n.
  1. The closest point in a star's orbit around the centre of a galaxy (the galactic periapsis).
    — During the late Cenozoic glaciation, high-latitude glaciation started in the Miocene 14 m.y. ago, and the sun is presently 8 + 4 m.y. from the perigalacticum.

词形变化

perigalactica plural
0 次浏览 数据来源: Wiktionary