天鹰座σ,中名右旗二,又名BD+05 4225,HD 185507、SAO 124903、HR 7474,是天鹰座的一颗恒星[1][2],视星等为5.17,位于银经43.27,银纬-8.07,其B1900.0坐标为赤经19h 34m 15.5s,赤纬+5° -8.07′ 11″。
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