noun
- the branch of astronomy that deals with measuring the positions and movements of celestial objects
Usage: astronomy
Examples
- Astrometry helps astronomers track the precise locations of stars in the sky.
- The satellite was designed specifically for astrometry missions.
- Through astrometry, scientists can detect the wobble of stars caused by orbiting planets.
- Modern astrometry uses advanced telescopes to measure stellar positions with incredible accuracy.
- The Gaia spacecraft has revolutionized astrometry by mapping over a billion stars.
- Astrometry data revealed that the star had moved significantly over the past century.