perihelion

1. 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？

2. 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。

3. 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。

4. 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。

5. But it's not that simple either, because the dates of the perihelion and aphelion are also shifting.: 但这并不是简单的一件事情，因为近日点和远日点的日期都会变换。

6. The point in the orbit nearest the sun is called perihelion, while the point farthest is called aphelion.: 在轨道上最接近太阳的点被称为近日点，而最远离太阳的点被称为远日点。

7. According to Marsden's calculations, this comet reaches its closest point to the Sun (perihelion) on March 18th.: 根据Marsden的计算，这颗彗星会在3月18日过近日点。

8. 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。

9. He also figured out the planet goes faster when it's at perihelion, nearer the sun, than when it's at aphelion, its farthest distance.: 他还指出了，地球在近日点的速度要比它在远日点快，近日点离太阳比较近，远日点是距离太阳最远的地方。

10. This composite neatly compares two pictures of the Sun taken with the same telescope and camera on the dates of Perihelion (closest approach) and Aphelion in 2008.: 这张合成照片直观地比较了两张由同一台望远镜和照相机拍摄的太阳，一张拍摄于2008年近日点，另一个拍摄于同年的远日点。

11. Right now, odds are that Comet Elenin will become an easy target for binoculars around mid-August and reach naked-eye visibility for a couple of weeks around perihelion.: 现在，有一定概率的Elenin彗星大约在八月中旬会变成一个很明显的双筒望远镜观测目标，并在近日点附近的几星期达到肉眼可见的程度。

12. Easy to spot in binoculars for now, McNaught will sink into the twilight along the eastern horizon in the coming days as it heads toward perihelion (closest approach to the Sun) on July 2.: 现在用双筒望远镜很容易找到麦克·诺特彗星，它将在以后一段时间，在黎明东边地平线上慢慢下落，7月2日过近日点。

13. This paper derives in detail the gravitational field of the sun by using the Schwarzschild metric, and expounds the advance of the Mercury's perihelion with the general theory of relativity.: 用史瓦西度规详尽地推导了太阳引力场，用广义相对论解释了水星近日点的进动。

14. This paper derives in detail the gravitational field of the sun by using the Schwarzschild metric, and expounds the advance of the Mercury's perihelion with the general theory of relativity.: 用史瓦西度规详尽地推导了太阳引力场，用广义相对论解释了水星近日点的进动。

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