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V Coronae Borealis : ウィキペディア英語版
V Coronae Borealis

V Coronae Borealis (V CrB) is a Mira-type long period variable star and carbon star in the constellation Corona Borealis. Its apparent magnitude varies between 6.9 and 12.6 over a period of 357 days
V Coronae Borealis is too far from earth for its parallax to be measured effectively; Guandalini and Cristallo calculated the luminosity of Mira variables based on their periods. Using a period of 357 days, they calculated the absolute magnitude of V Coronae Borealis to be -4.62. It was estimated to around 8810 light-years distant in a 2012 paper, shining with a luminosity approximately 102831 times that of the Sun and has a surface temperature of 2877 K.
==References==



抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「V Coronae Borealis」の詳細全文を読む



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