HD 57821,又名BD-18 1806,SAO 152776、HR 2812,是一颗恒星[1][2],视星等为4.96,位于银经233.29,银纬-2.06,其B1900.0坐标为赤经7h 17m 49.2s,赤纬-18° -2.06′ 33″。
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