| 翻訳と辞書 | 53 Ophiuchi 
 53 Ophiuchi is a double star in the constellation Ophiuchus. Its apparent magnitude is 5.23. Located around  distant, the primary is a blue-white main-sequence star of spectral type A2V, while the secondary, with an apparent magnitude of 7.76, is a subgiant of spectral type A8IV.
 ==References==
 
 
 
 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』
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