perihelion

天文·每日一图

阿特拉斯彗星绕过太阳

A comet is seen near the top of the image. The comet has several tails visible, some being white but others having different colors. Please see the explanation for more detailed information.
图片顶部附近可见一颗彗星。这颗彗星有几条可见的彗尾,一些是白色的,但其他的则有不同的颜色。有关更多详细信息,请参阅说明。

天文·每日一图

日晕与太阳

2024年1月13日 Circling the Sun Image Credit & Copyright: Radoslav Zboran Explanation: Earth’s orbit around the Sun is not a circle, it’s an ellipse. The point along its elliptical orbit where our fair planet is closest to the Sun is called perihelion. This year, perihelion was on Januar

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近日点附近的彗星C/2023 E1 ATLAS

2023年7月14日 Comet C/2023 E1 ATLAS near Perihelion Image Credit & Copyright: Dan Bartlett Explanation: Comet C/2023 E1 (ATLAS) was just spotted in March, another comet found by the NASA funded Asteroid Terrestrial-impact Last Alert System. On July 1 this Comet ATLAS reached perihelion, its closes

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2023年近日点的太阳

2023年1月14日 Perihelion Sun 2023 Image Credit & Copyright: Peter Ward (Barden Ridge Observatory) Explanation: Perihelion for 2023, Earth’s closest approach to the Sun, was on January 4 at 16:17 UTC. That was less than 24 hours after this sharp image of the Sun’s disk was recorded with

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近日点与远日点

2021年7月8日 Perihelion to Aphelion Image Credit & Copyright: Richard Jaworski Explanation: Aphelion for 2021 occurred on July 5th. That’s the point in Earth’s elliptical orbit when it is farthest from the Sun. Of course, the distance from the Sun doesn’t determine the seasons. T

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