perigeal

英['perɪdʒiː] 美['perɪdʒiː]
  • n.近地点;最近点
perigeal
Noun:
  1. periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth

    用作名词 (n.)
    1. The Moon reaches its absolute perigee once a year.
      月球每年有一次达到它的绝对近地点。
    2. When perigee and perihelion coincide tidal range is at its greatest.
      当月球与地球到达它们的近地点和近日点的时间恰好重合时,就会引起最大的潮汐。