最終更新日：2024/07/29
(astronomy) A large blue star in the constellation of Orion; Epsilon (ε) Orionis. It is one of the three stars that form Orion's Belt.
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(astronomy) A large blue star in the constellation of Orion; Epsilon (ε) Orionis. It is one of the three stars that form Orion's Belt.
Alnilam
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