Astrometry
Branch of astronomy involving positioning and movements of celestial bodies / From Wikipedia, the free encyclopedia
Astrometry is a branch of astronomy that involves precise measurements of the positions and movements of stars and other celestial bodies. It provides the kinematics and physical origin of the Solar System and this galaxy, the Milky Way.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/7/7f/Interferometric_astrometry.jpg/320px-Interferometric_astrometry.jpg)