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星系際塵埃

星系際塵埃是在星系星系際空間宇宙塵[1]。早在1949年就有人提出星系際塵埃存在的證據,並且對它的研究在20世紀後期快速的成長[1]。星系際塵埃的分佈有很大的差異 [1],這些塵埃可能會影響星系的距離測量,像是超新星、類星體和其它的星系[2]

星系際塵埃可以是星系際塵埃雲的一部分,自從1960年代才被發現環繞在一些其它星系的週圍[1],到了1980年代,至少發現了4個星系際塵埃雲存在於距離銀河系百萬秒差距的空間內[1],其中一個例子就是Okroy cloud[1]

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星系際塵埃
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