木星上的月球阴影
(原标题: Moon Shadow on Jupiter)
2022-04-27
浏览次数: 20
木星上的那个大黑点是什么？它是木星最大的卫星Ganymede的影子。当木星的卫星穿过木星和太阳之间时，它们会产生阴影，就像地球的卫星穿过地球和太阳之间一样。也像在地球上一样，如果你在木星的阴影中，你会看到月亮完全日食太阳。与地球不同的是，木星上大部分时间都会出现月球阴影——更不寻常的是，一艘宇宙飞船离木星足够近，可以用高分辨率的图像记录下月球阴影。朱诺号宇宙飞船在2月下旬离木星很近，以至于附近的云层和日食的阴影看起来相对较大。朱诺号对太阳系最大的行星有很多发现，包括最近发现的快速扩张的圆形极光。探索你的宇宙：随机APOD生成器
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What is that large dark spot on Jupiter? It's the shadow of Ganymede, Jupiter's largest moon. When Jupiter's moons cross between the Jovian giant and the Sun, they created shadows just like when the Earth's moon crosses between the Earth and the Sun. Also like on Earth, if you were in a dark shadow on Jupiter, you would see a moon completely eclipse the Sun. Unlike on Earth, moon shadows occur most days on Jupiter -- what's more unusual is that a spacecraft was close enough to record one with a high-resolution image. That spacecraft, Juno, was passing so close to Jupiter in late February that nearby clouds and the dark eclipse shadow appear relatively large. Juno has made many discoveries about our Solar System's largest planet, including, recently, rapidly expanding circular auroras. Explore Your Universe: Random APOD Generator