1. An anomalistic month refers to successive returns to perigee, a period of 27. 55455 days. 一个近点月指的是返回到近地点相继的时间，为27。55455天。
2. The rocket which was designed to take photographs of the moon was launched as the moon approached its perigee. 火箭的目的是拍摄月球发射的月球接近近。
3. You now have the ecliptic longitude of perigee of the sun for the mean summer solstice of your chosen year (and effectively for the entire year) . 你现在有黄道经度的近地点的阳光平均夏季冬至，你选择了一年（而有效地为整个一年 ） 。
英英解释
n.
1. periapsis in Earth orbit; the point in its orbit where a satellite is nearest to the Earth
