Linked from

The 58 pages that link to Astrometry, each with the reason it gives.

• ExoplanetRelated: Tracking a star’s sky-plane motion can reveal the gravitational pull of an orbiting planet.

• AstrophotographyRelated: Calibrated astrophotographs can support precise positional measurements.

• KinematicsRelated: Repeated position measurements yield stellar and planetary kinematics.

• AstronomyRelated: Position and motion measurements establish stellar distances and map the Milky Way.

• EphemerisRelated: Observed positions can be compared with ephemerides to refine or test predictions.

• Photographic plateRelated: Astronomers measured star positions on photographic plates across repeated exposures.

• John HerschelRelated: Precise positional records supported the systematic surveys Herschel conducted.

• Near-Earth objectRelated: Repeated astrometric positions establish a near-Earth object’s orbit.

• Observational astronomyRelated: Precise positions and motions reveal stellar distances and gravitational influences.

• Refracting telescopeRelated: Refractors can provide stable, sharp images for precise positional measurements.

• History of astronomyRelated: Improved positional measurement repeatedly tested and refined historical models of the heavens.

• Stellar kinematicsRelated: Astrometry supplies measurements, while kinematics interprets motion distributions.

• Amateur astronomyRelated: Position measurements can support asteroid tracking, orbit refinement, and discoveries.

• Spherical astronomyRelated: Astrometry turns spherical coordinates into observational measurements and catalogs.

• Earth orientation parametersRelated: Transforming observed celestial positions to terrestrial locations depends on Earth orientation.

• Sidereal yearRelated: Accurate stellar positions help establish the reference frame for orbital measurements.

• AntaresRelated: Astrometric measurements establish Antares's distance and motion through the Galaxy.

• Astronomical observationRelated: Position measurements reveal parallax, proper motion, and orbital motion.

• Planetary orbitRelated: Tracking a star’s sky-plane motion can reveal the orbit of an unseen planet.

• PrecessionRelated: Accurate star positions must account for precession when compared across epochs.

• Very Long Baseline ArrayRelated: VLBA observations can determine precise radio-source positions and motions.

• Stellar orbitRelated: Astrometric measurements reveal a star’s motion across the sky.

• Exoplanet detectionRelated: A planet can make its star trace a small orbit across the sky.

• Celestial cartographyRelated: Astrometric measurements supply the precise positions plotted on star maps.

• SIMBADRelated: Astrometric measurements help identify and characterize SIMBAD objects.

• AstronomerRelated: Precise positions let astronomers trace stellar motion and map the cosmos.

• Astronomical coordinate systemsRelated: It produces positions whose interpretation requires an explicitly defined coordinate framework.

• FomalhautRelated: Precise position measurements can test whether suspected companions follow planetary orbits.

• Orion ArmRelated: Parallaxes and proper motions help locate stars and gas relative to the arm.

• Astronomical catalogueRelated: Precise coordinates let catalogues distinguish and relocate objects.

• Epsilon EridaniRelated: Astrometric measurements can test whether a planet’s pull explains the star’s apparent motion.

• Tau CetiRelated: Astrometric measurements constrain Tau Ceti’s distance, motion, and stellar characteristics.

• Andrea M. GhezRelated: Ghez’s team used astrometry to chart stars’ changing positions around the central source.

• Minute and second of arcRelated: Arcseconds and smaller units express the precision of celestial positions.

• Nibiru cataclysmRelated: Repeated positional measurements would reveal a large planet before a close encounter.

• Pi PuppisRelated: Precise positions and motion help characterize the components of Pi Puppis.

• Zeta OphiuchiRelated: Astrometric measurements constrain the star's speed and trace its trajectory backward.