• Braided, serpentine filaments of glowing gas suggest this nebula's popular name, The Medusa nebula.

    象辫子一样层层卷绕发光丝状气体暗示这个星云俗名:水母(美杜萨)星云。

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  • Also known as Abell 21, this Medusa is an old planetary nebula some 1, 500 light-years away in the constellation Gemini.

    称作阿贝尔21水母星云双子座中一个1500光年远的年老行星星云

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  • Also known as Abell 21, this Medusa is an old planetary nebula some 1, 500 light-years away in the constellation Gemini.

    称作阿贝尔21水母星云双子座中一个1500光年远的年老行星星云

    youdao

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