There are 4 Hipparcos stars among the 11 stars. The mean internal errors of proper motions of them in right ascension and declination are 0. 024ms/a and 0. 21mas/a, respectively.

• 其中有4颗是依巴谷星，它们的赤经和赤纬自行精度的平均值分别为0.；024ms/a和0