牧夫座44,又名BD+48 2259,HD 133640、SAO 45357、HR 5618,是牧夫座的一颗恒星[1][2],视星等为4.76,位于银经80.36,银纬57.06,其B1900.0坐标为赤经15h 0m 29.4s,赤纬+48° 57.06′ 36″。
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