astrometry
Mapping the heavens
Astrometry is the branch of astronomy concerned with measuring the positions and movements of celestial bodies.
While other astronomical disciplines study what stars and planets are made of or how they behave, astrometry focuses on precisely where they are and how they move through space: Astrometry data revealed the wobble that indicated an orbiting planet.
Position change from different vantages
- positionLocation or stance
- distanceSpace between two points
- baselineStandard for comparison
- angleGeometric measure of rotation
epoch · magnitude · flux · calibration · error · uncertainty · resolution · precision
Instrument magnifying faraway objects
- observatoryFacility for celestial study
- interferometryMeasurement using wave combination patterns
- spectrographWavelength-separating recording instrument
- detectorDevice that senses
CCD · focal plane · micrometer · Gaia · Tycho · space telescope · photometer · plate
Luminous celestial bodies
- stellarOf or like celestial bodies
- double starsTwo suns orbiting each other
- binary starsTwo stars orbiting together
- star clustersGravitationally bound stellar collections
exoplanets · brown dwarfs · asteroids · comets · solar system · galactic · extragalactic · quasars
Ordered list of items
- star chartDiagram of celestial bodies
- ephemerisCelestial body position chart
- almanacYearly data compilation
- reference frameBasis for measuring position
Chart showing constellation positions
- planisphereAdjustable celestial map disc
- atlasBound collection of charts
- chartingRecording data visually
- projectionSomething that extends outward
parallax
Position change from different vantages
angle · epoch · magnitude · flux · calibration · error · uncertainty · resolution · precision · accuracy
telescope
Instrument magnifying faraway objects
- observatoryFacility for celestial study
- interferometryMeasurement using wave combination patterns
- spectrographWavelength-separating recording instrument
detector · CCD · focal plane · micrometer · Gaia · Tycho · space telescope · photometer · plate · survey
stars
Luminous celestial bodies
- stellarOf or like celestial bodies
- double starsTwo suns orbiting each other
- binary starsTwo stars orbiting together
star clusters · exoplanets · brown dwarfs · asteroids · comets · solar system · galactic · extragalactic · quasars · celestial sphere
catalog
Ordered list of items
- star chartDiagram of celestial bodies
- ephemerisCelestial body position chart
- almanacYearly data compilation
star map
Chart showing constellation positions
- planisphereAdjustable celestial map disc
- atlasBound collection of charts
- chartingRecording data visually
astrometryspectroscopy
Study of light-matter interaction
astrophysics · photometry · radio astronomy · cosmology · astrobiology
geometry, astronomy, astrology, astronomical, astronomer, astrologer, metric, metronome, astronomers