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ZH双星Noun
ZH
雙星（英語：Double star）在觀測天文學中指的是當兩顆恆星由地球上觀察時，在視線的方向上非常接近，以致以肉眼看起來像是只有一顆恆星，但使用望遠鏡時就能分辨出來是一對的恆星。
聯星聯星
bn:00010473n Concept
English:
astronomy
EN
Double Star is a science fiction novel by American writer Robert A. Heinlein, first serialized in Astounding Science Fiction and published in hardcover the same year.
雙星
bn:03331968n Named Entity

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