1、The Q is - do you mean Pluto in its aphelion or perihelion ?
我的問題是，冥王星此時是在近地點還是遠地點？

2、A comet is at perihelion when it is closest (=very close) to the sun.
彗星最接近太陽時，它就是在近日點。

3、A comet is at perihelion when it is closest (=very close) to the sun
彗星最接近太陽時，它就是在近日點。

perihelion翻譯