英仙座ο,又名BD+31 642,HD 23180、SAO 56673、HR 1131,是英仙座的一顆恆星[1][2],視星等為3.83,位於銀經160.36,銀緯-17.74,其B1900.0坐標為赤經3h 38m 2.7s,赤緯+31° -17.74′ 18″。
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