Parallaxes and Proper Motions of Northern and Southern Stars

[03:14 . 94] Ianna视差和恒星的固有运动构成了宇宙距离尺度的基础，因此也是我们理解诸如恒星演化、到其他星系的距离和宇宙年龄等各种主题的基础。这些研究人员正在对南半球的恒星进行唯一的长期视差和固有运动计划。在后续工作中，将重点研究白矮星、亚矮星和低光度冷主序星的视差。* * *

9314094 Ianna Parallaxes and proper motions of stars form the foundation for the cosmic distance scale and consequently the foundation of our understanding such diverse topics as the evolution of stars, the distances to other galaxies and the age of the universe. These investigators are conducting the only long term parallax and proper motion program for stars in the southern hemisphere. In the continuation of this work, the parallaxes of white dwarf stars, subdwarf stars and low luminosity cool main sequence stars will be emphasized. ***