Astrometric Catalogs

Astrometric catalogs are comprehensive databases that record precise positions, movements, and distances of stars and celestial objects. They serve as detailed star maps used by astronomers to study the structure of our galaxy, track objects, and navigate space missions. These catalogs compile measurements gathered through telescopes and advanced observations, providing essential data for understanding stellar dynamics and the universe's layout. Examples include the Gaia catalog, which offers highly accurate and extensive data about over a billion stars, helping scientists analyze the universe's vast scale and motion.