perihelion

perihelion

1. "Mars at Perihelion and Opposition", the Grand Celestial Phenomenon

"火星大冲"天象大戏

2. (astronomy) position of a planet as defined by its angular distance from its perihelion (as observed from the sun)

从太阳观察到的行星距近日点的角度偏差

3. (astronomy) position of a planet as defined by its angular distance from its perihelion (as observed from the sun).

从太阳观察到的行星距近日点的角度偏差。

4. It is well known that observations accurately confirm the three predictions of Einstein [1, 2], namely: 1) the gravitational redshifts, 2) the perihelion of Mercury, and 3) the deflection of light.

众所周知，观察准确地肯定爱氏的三大预言，即：1)引力红移,2)水星的进动,和3)光线的偏移。

5. But surprising Comet McNaught - whose January 12 closest approach to the Sun (perihelion passage) was well inside the orbit of Mercury - gave an enjoyable performance in bright blue daytime skies.

但令人惊异的是当麦克诺特彗星在1月12日于水星轨道内处于近日点时，在白天蓝色的天空中还能看到彗星美丽的外表。

6. Still, by January 11 sun-staring spacecraft SOHO should be able to offer web-based views as the comet heads toward a perihelion passage inside the orbit of Mercury.

但是，1月11日当彗星通过水星轨道内部接近其近日点时，太阳观测卫星SOHO将通过网络送回拍摄到该过程的影像。

7. 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。

8. The great comet of 1882, for example, almost grazed the sun, being only about 290,000 miles away from the sun's surface at perihelion.

例如一八八二年出现的大彗星几乎擦过太阳，因为它的近日点距离太阳表面仅仅大约廿九万哩。

9. Halley's Comet with average run cycle 76.01 years passed through perihelion last time in 1986, the next will appear in 2061.

哈雷彗星的平均运行周期是76.01年，过近日点日 期上一次发生在1986年，下一次将出现在2061年。

10. In all this Cuban business there is one man stands out on the horizon of my memory like Mars at perihelion.

在所有与古巴有关的故事中，有一个人令我无法忘怀，他就像近日点的火星一样耀眼。

11. There are times when it is more elliptical than it is now, so the difference in solar radiation received at the perihelion and aphelion will be greater.

在某些时期地球的轨道比现在更接近椭圆,因此在近日点和远日点处接受太阳辐射差别就更大。

12. 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。

13. Slightly more solar energy is received when the Sun and Earth are closest (the perihelion) than when they are farthest apart (the aphelion).

太阳和地球的距离最近(近日点)时,所接收的太阳能要比距离最远(远日点)时接收的稍多一点。

14. The Oblateness of the Sun and the Advance of Mercury Perihelion

太阳的扁率和水星近日点的进动

15. Gravity waves and perihelion deflexion of light

引力波与光线近日偏折

16. When perigee and perihelion coincide tidal range is at its greatest.

当月球与地球到达它们的近地点和近日点的时间恰好重合时，就会引起最大的潮汐。

17. A comet is at perihelion when it is closest (=very close) to the sun.

彗星最接近太阳时，它就是在近日点。

18. Otherwise difficult to notice, the change in the Sun's apparent diameter between Perihelion and Aphelion is clear.

我们很难用肉眼看出近日点和远日点太阳视直径的变化，但在这张图上显而易见。

19. Because of this,perihelion will shift one day later about every 50 years.

由于这个原因，（地球过）近日点每隔50年大约改变1天。

20. The splendor of Aquarius meteor shower currently seen across the night sky is the ice particle dust sprayed out by Halley's Comet during last perihelion pass.

目前人们看到宝瓶座流星雨划破夜空的异彩，就是哈雷彗星以往过近日点时喷洒出来的尘埃冰粒。

21. The perihelion of the earth each year is just several days after Christmas Day (3 or 4 January). So,the distances from the earth to the sun and from the earth to the moon may reach the closest point around Christmas every 4.425 years.

而每年的地近日点(1月3日或4日)正置圣诞节过后几天,因此,日、月、地相对运动每隔4.425a 在圣诞节前后三者距离总会达到最近。

22. Although predicting the brightness of comets with any degree of accuracy is very difficult, Hale-Bopp met or exceeded most predictions when it passed perihelion on April 1, 1997.

虽然预测彗星在不同角度的亮度是非常困难的，但是当1997年4月1日海尔波普彗星通过近日点时，达到甚至超过了大多数的预测。

23. advance of the perihelion

近日点前移

24. perihelion effect

近日点效应

25. 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？

26. perihelion motion

近日点移动

27. argument of perihelion

近日点辐角

28. perihelion precession

近日点进动

29. perihelion passage

近日点通过

30. longitude of perihelion

近日点黄经

31. perihelion distance

近日距

32. 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。

33. 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

34. This happens around the time that Mercury arrives at that part of its orbit which places it closest to the Sun (called perihelion), where it's orbital speed can briefly exceed its rotational speed.

这发生部分轨道上。此时水星距离太阳最近（所谓的近日点）这时候的公转速度会短暂超过自转速度。