獅子座18,又名BD+12 2090,HD 84561、SAO 98755、HR 3877,是獅子座的一顆恆星[1][2],視星等為5.63,位於銀經223.07,銀緯44.08,其B1900.0坐標為赤經9h 41m 0.1s,赤緯+12° 44.08′ 15″。
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