astrometric
/ˌæstroʊˈmɛtrɪk/
adjective
- Relating to the precise measurement of the positions and movements of stars and other celestial bodies.
- Astrometric data helps scientists track asteroids that might approach Earth.
- The satellite's astrometric measurements were accurate to within a millionth of a degree.
- The telescope was used for astrometric observations of nearby stars.