后发座25,又名BD+17 2504,HD 109742、SAO 100176、HR 4801,是后发座的一颗恒星[1][2],视星等为5.68,位于银经283.77,银纬79.42,其B1900.0坐标为赤经12h 31m 57.4s,赤纬+17° 79.42′ 26″。
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