astronomy
Celestial body science
Astronomy is the scientific study of celestial objects and phenomena—stars, planets, galaxies, and the universe as a whole.
It examines everything from nearby moons to distant quasars, addressing questions about the origin, structure, and fate of the cosmos.
She studied astronomy in college.
Distinguished from astrology, which claims celestial positions influence human affairs.
Exploding massive star
- nebulaInterstellar gas formation
- pulsarMagnetized rotating neutron emitter
- magnetarNeutron star, intense field
- protostarPre-fusion celestial body
hypernova · constellation · magnitude · luminosity · photosphere · corona · chromosphere · fusion
Curved celestial path
- ellipseConic section curve
- KeplerPlanetary motion law formulator
- ephemerisCelestial body position chart
- precessionRotating axis gradually reorients
nutation · perturbation · gravitation · satellite · eccentricity · inclination · aphelion · perihelion
Messenger god or planet
- VenusLove goddess, or planet
- EarthOur world
- MarsRed planet, war deity
- JupiterLargest solar system planet
Saturn · Uranus · Neptune · Pluto · moon · asteroid · comet · meteor
Facility for celestial study
- telescopeInstrument magnifying faraway objects
- photometryMeasuring light intensity
- spectroscopyStudy of light-matter interaction
- astrometryMeasuring celestial body positions
infrared · ultraviolet · gamma-ray · interferometry · spectrograph · detector · occultation · seeing
Maritime angular measurement device
- latitudeGeographic or personal freedom
- longitudeEast-west angular distance
- zenithPoint straight overhead
- nadirLowest possible point
meridian · horizon · bearing · azimuth · altitude · Polaris · almanac · chronometer
NASA interstellar mission name
- PioneerAudio-visual equipment manufacturer
- GalileoRenaissance astronomer from Italy
- CassiniSaturn mission namesake
- HubbleRenowned astronomer's surname
spacecraft · rover · lander · probe · Curiosity · Juno · Kepler · Chandra
Collapsed star's remnant
- quasarLuminous active galactic core
- spacetimeMerged dimensional framework
- singularityPoint where values explode
- wormholeHypothetical spacetime tunnel
Wavelength stretch from recession
- multiverseHypothetical set of universes
- expansionIncrease in scope
- cosmogonyStudy of universal origins
- steady-stateCondition of constant balance
supernova
Exploding massive star
- nebulaInterstellar gas formation
- pulsarMagnetized rotating neutron emitter
- magnetarNeutron star, intense field
protostar · hypernova · constellation · magnitude · luminosity · photosphere · corona · chromosphere · fusion · nucleosynthesis
orbit
Curved celestial path
- ellipseConic section curve
- KeplerPlanetary motion law formulator
- ephemerisCelestial body position chart
precession · nutation · perturbation · gravitation · satellite · eccentricity · inclination · aphelion · perihelion · barycenter
Mercury
Messenger god or planet
Jupiter · Saturn · Uranus · Neptune · Pluto · moon · asteroid · comet · meteor · crater
observatory
Facility for celestial study
- telescopeInstrument magnifying faraway objects
- photometryMeasuring light intensity
- spectroscopyStudy of light-matter interaction
astrometry · infrared · ultraviolet · gamma-ray · interferometry · spectrograph · detector · occultation · seeing · resolution
sextant
Maritime angular measurement device
- latitudeGeographic or personal freedom
- longitudeEast-west angular distance
- zenithPoint straight overhead
nadir · meridian · horizon · bearing · azimuth · altitude · Polaris · almanac · chronometer · planisphere
Voyager
NASA interstellar mission name
- PioneerAudio-visual equipment manufacturer
- GalileoRenaissance astronomer from Italy
- CassiniSaturn mission namesake
Hubble · spacecraft · rover · lander · probe · Curiosity · Juno · Kepler · Chandra · mission
black-hole
Collapsed star's remnant
- quasarLuminous active galactic core
- spacetimeMerged dimensional framework
- singularityPoint where values explode
redshift
Wavelength stretch from recession
- multiverseHypothetical set of universes
- expansionIncrease in scope
- cosmogonyStudy of universal origins
eyepiece
Lens you look through
- refractorLight-bending optical instrument
- reflectorLight-redirecting surface
- apertureAdjustable optical inlet
mount · tripod · mirror · lens · collimation · planisphere · tracking · amateur
- night skystars, moon, constellations, shooting stars, constellation
- sciencesbiology, chemistry, physics, geology, mathematics
- STEMscience, engineering, mathematics, math, technology
- academic fieldsmathematics, biology, chemistry, physics, history
- Physical Sciencesphysics, chemistry, geology, meteorology, mechanics
- scientific progressinventions, scientific expeditions, natural history, geology, botany
astronomymicrobiology
Study of microscopic life
nanotechnology · cellular biology · bacteriology · microscopy · particle physics
astronomygeology
Study of Earth's composition
psychology · meteorology · sociology · geography · oceanography
astronomyastrology
Divination by celestial positions
horoscopes · fortune-telling · divination · mythology · superstition
- astronomy clubGroup studying celestial bodies
- amateur astronomyRecreational celestial observation
- astronomical tablesComputed celestial coordinates listings
- radio astronomyAnalyzing cosmic electromagnetic emissions
- astronomical clockCelestial-tracking timekeeping mechanism
- astronomy classAcademic study of space
astronomical, astronomer, astronomers, astronomic, astronomically