山案座η,又名CP-75 290,HD 32440、SAO 256145、HR 1629,是山案座的一顆恆星[1][2],視星等為5.47,位於銀經287.12,銀緯-33.55,其B1900.0坐標為赤經4h 58m 3.5s,赤緯-75° -33.55′ 26″。
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