The average velocity, 330km/sec. of the high velocity stars with respect to the galactic center is obtained from the data used by Fricke on the assumption that the rotational velocity of the Local Standard of Rest is 250km/sec. Comparing this value with the escape velocity, 380km/sec, at the solar neighborhood which is calculated from Mestel's model of the Galaxy, it is shown that most of the high velocity stars are bound to the Galaxy and that their average apogalacticon is about 40 kpc from the galactic center. And the fact that stars with radial velocities larger than 63km/sec are missing in the direction of galactic rotation of L.S.R. is interpreted as the result partly of the random distribution of the directions of motion of the high velocity stars and partly of the observational errors.

Abstract
Ⅰ. 序論
Ⅱ. 資料와 分析
Ⅲ. 高速度星의 平均速度와 速度分布
Ⅳ. 銀河系模型과 太陽부근에서의 脫出速度
Ⅴ. 高速度星의 軌道運動
Ⅵ. 結論과 問題點
參考文獻

• 李榮範(Gradute School of Education, Seoul National University) | Young Bom Lee
• 兪景老(College of Education, Seoul National University) | Kyung Loh Yu