近日点的英文

[天文学] perihelion
◇近日点效应 perihelion effect

• 近日点；最高点:    perihelion
• 近日点冲:    perihelic oppositi ...
• 近日点辐角:    argument of perihe ...

例句与用法

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1. Advance of the perihelion
   近日点前移
2. Advance of perihelion
   近日点前移
3. If you missed this perihelic opposition of mars , you have to wait until 2287 for an even closer one
   错过了这次的火星近日点冲，最快要等到2287年才有另一次更近距离观赏火星的机会了。
4. Comet giacobini - zinner passed the perihelion on 3 july this year , it is still relatively close to the earth in october . some astronomers predicted that draconids may be worth watching this year
   Giacobini - zinner彗星今年在7月3日通过近日点，至10月时与地球尚算接近，因此有天文学家认为今年可能会出现较可观的天座流星雨。
5. Draconid meteor shower , associated with comet 21p giacobini - zinner , is not a major meteor showers throughout the year . it approaches the sun every 6 . 61years . if the earth is near the comet s perihelion during that period , a stronger meteor shower may occur
   它的母体是21p giacobini - zinner彗星，每6 . 61年回归一次，若当时地球较接近彗星的近日点，便有可能出现较可观的流星雨。

百科释义

近日点，一颗行星或彗星距太阳最近的点。当对象为地球而非太阳时则使用“近地点”一词。