月球每年有一次达到它的绝对近地点。
月球连续两次经过近地点所需的时间。
月球连续两次经过近地点所需的时间。
The time between two passages at the perigee ( of the Moon ).
现在我们要看看,近地点和远地点的情况。
Now we want to know what the situation is with perigee and with apogee.
近点周长度与月亮过近地点时的月相有关;
The length of anomalistic month is related to the moon's phase at the perigee.
我的问题是,冥王星此时是在近地点还是远地点?
The Q is - do you mean Pluto in its aphelion or perihelion ?
本文提供一种保持轨道形状和近地点位置不变的控制方法。
This paper offers a method which maintain orbital shape and perigee location.
本文提供一种保持轨道形状和近地点位置不变的控制方法。
This paper offers a method which maintain orbital shape and perigee location.
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