孙二(天鸽座θ),又名CD-37 2609,HD 42167、SAO 196514、HR 2177,是天鸽座的一颗恒星[1][2],视星等为5.02,位于银经243.94,银纬-24.26,其B1900.0坐标为赤经6h 4m 5.8s,赤纬-37° -24.26′ 20″。
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