planetary satellite

英 美
  • 行星卫星
    1. One of the four brightest satellites of Jupiter and the sixth in distance from the planet. Originally sighted by Galileo, it is the largest planetary satellite.
      卡利斯托卫星木星最亮的四颗卫星之一,是距木星第六远的卫星。最初为伽利略所发现,它是最大的行星卫星