オリオン座S星
1. S OrionisS Orionis is a red giant star in the constellation Orion. It is a Mira variable that pulsates with a 420–day cycle, and varies in radius from 1.9 to 2.3 astronomical units.
Read “S Orionis” on English Wikipedia
Read “オリオン座S星” on Japanese Wikipedia
Read “S Orionis” on DBpedia
Read “S Orionis” on English Wikipedia
Read “オリオン座S星” on Japanese Wikipedia
Read “S Orionis” on DBpedia
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