水母星云(Jellyfish Nebula),即IC 443、Sh2-248(Sharpless 248),是一个位于银河系中的超新星遗迹,在天球上位于双子座,在双子座η附近,距离地球约5000...
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水母星云约5000光年远。
常常是暗淡和难以找到的水母星云,被拍进这张迷人的假彩色望远镜照片。
Normally faint and elusive, the Jellyfish Nebula is caught in this alluring, false-color, telescopic view.
也被称作阿贝尔21,水母星云是双子座中一个1500光年远的年老行星状星云。
Also known as Abell 21, this Medusa is an old planetary nebula some 1, 500 light-years away in the constellation Gemini.
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