UMa Group

The Ursa Major Group (UMaG) is studied as a test case for the authenticity of Stellar Kinematic Groups, using Coravel radial velocities, recent compilations of astrometric data...大熊座星群（Ursa Major Group，UMaG）被用作验证恒星运动学群（Stellar Kinematic Groups）真实性的测试案例，本研究采用Coravel视向速度与近期汇编的天体测量数据……