长蛇座6,又名BD-11 2420,HD 73840、SAO 154515、HR 3431,是长蛇座的一颗恒星[1][2],视星等为4.98,位于银经237.4,银纬17.34,其B1900.0坐标为赤经8h 35m 17.2s,赤纬-12° 17.34′ 18″。
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