UBV and spectroscopic variations of V2368 Oph
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The A-type star HR 6412 = V2368 Oph was used by several investigators as a photometric comparison star for the known eclipsing binary U Oph but was found to be variable by three...
A型星HR 6412（即蛇夫座V2368）曾被多位研究者用作已知食双星蛇夫座U的测光比较星，但有三名研究者发现其本身存在亮度变化……
