star catalog
Astronomical position database
A star catalog is a systematic list of stars with their positions, brightness, and other properties.
Ancient astronomers compiled catalogs to track celestial objects; modern ones contain billions of entries from telescope surveys.
The Hipparcos catalog revolutionized our knowledge of stellar distances.
Also spelled star catalogue.
- astrometryMeasuring celestial body positions
- telescopeInstrument magnifying faraway objects
- photometryMeasuring light intensity
- celestial sphereImaginary dome of stars
- equinoxSun crosses celestial midline
precession · magnitude · Tycho Brahe · epoch · observatory · naked eye · fixed stars · parallax · declination · astrolabe · almanac · constellation · charting · spectroscopy · coordinates · ascension · ephemeris · Tycho
celestial vs terrestrial reference
star catalogland survey
Measuring and mapping terrain
topographic map · geological survey · census · city directory