雙子座TV,又名BD+21 1146,HD 42475、SAO 78092、HR 2190,是雙子座的一顆恆星[1][2],視星等為6.56,位於銀經189.08,銀緯1.6,其B1900.0坐標為赤經6h 5m 50.4s,赤緯+21° 1.6′ 23″。
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