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猎户四边形
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猎户四边形
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猎户四边形
位于猎户座大星云M42(见梅西叶星表)中央的疏散星团,其中的4颗亮星构成一个不规则四边形,因而得名。又称猎户四边形星团。
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Beijing-Kowloon Railway
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Beijing Metallurgical Equipment Research Design Institute Co.,Ltd.
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Beijing Normal University
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更新时间:2026/11/15 1:40:47