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تسجيل

Distances determined from velocities

المؤلف:  James Binney and Michael Merrifield

المصدر:  GALACTIC ASTRONOMY

الجزء والصفحة:  p-38

2026-09-08

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We have seen that the proper motions can now be measured for stars that are as far away as the Galactic center. If one knows both the distance and the proper motion of a star, then its transverse velocity can be calculated. To complete one's knowledge of the star's velocity vector v it remains only to determine the component