argument of perihelion.
近日点角距
A comet is at perihelion when it is closest to the sun.
彗星最接近太阳时，它就是在近日点。
The Q is do you mean Pluto in its aphelion or perihelion
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.
我得问题是，冥王星此时是在近地点还是远地点？
How much does the direction of perihelion change each orbit
近日点方向使每个轨道改变了 多少
The Effect of Solar Flattening on the Advance of the Perihelion of Mercury
太阳扁率对水星近日点进动的贡献
position of a planet as defined by its angular distance from its perihelion.
从太阳观察到的行星距近日点的角度偏差。
The angular deviation, as observed from the sun, of a planet from its perihelion.
近点距离，近点角从太阳观察到的行星距近日点的角度偏差。
This means that the Earth moves faster along the orbit in winter near perihelion.
这意味着地球在靠近冬至点附近的冬季运行得较快。
The anomalistic year is the time between successive transits of the Earth through the perihelion.
近点年是地球连续两次通过近日点之间的时间。
W hen the Earth moves from perihelion to aphelion, its radiation belts are expansion, and aphelion to perihelion contraction.
当地球从远日点运动到近日点时，地球辐射带向内收缩。
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