天鹅座V1773,又名BD+45 3139,HD 193536、SAO 49462、HR 7777,是天鹅座的一颗恒星[1][2],视星等为6.45,位于银经82.82,银纬5.8,其B1900.0坐标为赤经20h 15m 37.2s,赤纬+46° 5.8′ 31″。
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