HD 81809,又名BD-05 2802,SAO 136872、HR 3750,是一颗恒星[1][2],视星等为5.38,位于银经239.15,银纬30.65,其B1900.0坐标为赤经9h 22m 49.5s,赤纬-5° 30.65′ 3″。
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