带环小行星 – 3级

18-07-2023 15:00

人们可以认为查里克洛是一颗巨型小行星,也可以认为它是一颗小行星,但当科学家们发现它有类似土星的星环时,却为他们带来了一个惊喜。

由于它的宽度约为250公里,因此它是已知拥有这种星环的最小天体。人们认为,这种星环只能在更大的行星周围形成,如土星或海王星。

当这颗小行星在一颗恒星前移动时,天文学家才注意到这些星环,它投下的阴影有南美洲那么大,这激发了他们仔细观察的兴趣。他们还不知道星环是如何形成的,不过有一种理论认为,星环是由冰、鹅卵石和其他来自太空大碰撞的碎片组成的。

您可以观看本页下方的视频新闻。

据推测,是什么样的碰撞产生了围绕Chariklo的圆环?

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