The Unified Astronomy Thesaurus

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Interstellar medium wind original
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Stellar-interstellar interactions original
star this property definition Wind that a star perceives from the ISM.
Schonberg-Chandrasekhar limit original
star this property dcterms created equal to or less than 2018-09-10T16:07:43Zequal to or more than 2018-09-10T16:07:43Z
unstar this property dcterms modified equal to or less than 2018-09-11T18:40:36Zequal to or more than 2018-09-11T18:40:36Z
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Gravitational collapse original
star this property definition This represents the maximum fraction of a star's mass that can be contained within an isothermal core while still supporting the rest of the star in hydrostatic equilibrium. Once the mass of an isothermal helium core exceeds this limit, the corse collapses and the star evolve rapidly. The limit varies depending on the star.
Comas original
unstar this property dcterms modified equal to or less than 2018-09-07T15:36:55Zequal to or more than 2018-09-07T15:36:55Z
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Comets original
star this property definition The nebulous envelope around the nucleus of a comet, formed when the comet passes close to the Sun.
Chandrasekhar limit original
unstar this property dcterms modified equal to or less than 2018-09-10T16:13:57Zequal to or more than 2018-09-10T16:13:57Z
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Gravitational collapse original
star this property definition The maximum mass limit for a white dwarf star, ~1.44 solar masses. White dwarf stars in a binary system accreting mass from a companion will collapse in a Type II supernova once this limit is exceeded.
L galaxies original
unstar this property dcterms modified equal to or less than 2016-11-01T17:59:43Zequal to or more than 2016-11-01T17:59:43Z
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Low surface brightness galaxies original
star this property definition In Morgan's classification, an elongated galaxy of low surface brightness. --Glossary of Astronomy and Astrophysics, J. Hopkins, University of Chicago Press (1976)
Xenobiology original
unstar this property dcterms modified equal to or less than 2018-09-20T14:28:46Zequal to or more than 2018-09-20T14:28:46Z
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Astrobiology original
star this property definition "the study of synthesizing and manipulating biological devices and systems" - Wikipedia
Astrobiology original
unstar this property dcterms modified equal to or less than 2018-09-20T15:08:24Zequal to or more than 2018-09-20T15:08:24Z
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Interdisciplinary astronomy original
star this property definition "The study of life throughout the Universe, also known as exobiology." - An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri.
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Xenobiology original
Biomarkers original
DQ Herculis stars original
unstar this property dcterms modified equal to or less than 2018-09-13T20:20:25Zequal to or more than 2018-09-13T20:20:25Z
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Novae original
star this property definition "A type of cataclysmic variable binary star system with a white dwarf and a cool main-sequence secondary star." - Wikipedia
Field stars original
star this property dcterms created equal to or less than 2018-09-14T19:11:19Zequal to or more than 2018-09-14T19:11:19Z
unstar this property dcterms modified equal to or less than 2018-09-14T19:14:04Zequal to or more than 2018-09-14T19:14:04Z
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Stellar types original
star this property definition "A star that does not belong to a stellar cluster, but happens to be adjacent to it." - An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri.
Field galaxies original
unstar this property dcterms modified equal to or less than 2018-09-14T19:14:18Zequal to or more than 2018-09-14T19:14:18Z
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Galaxies original
star this property definition "A galaxy that lies in the direction of a cluster of galaxies, but is not a member of the cluster. Field galaxies are rare, less than about 5% of all galaxies." - An Etymological Dictionary of Astronomy and Astrophysics, by M. Heydari-Malayeri.
Astrometry original
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Astronomical techniques original
Exoplanet detection methods original
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Astronomical coordinate systems original
Astronomical location original
Baade-Wesselink method original
Bolometric correction original
Brightness temperature original
Distance measure original
Effective temperature original
Equator position original
Fundamental parameters of stars original
Magnitude original
Parallax original
Phase angle original
Phase defect original
Phase effect original
Phase error original
Photographic astrometry original
Radial velocity original
Radio astrometry original
Relativistic aberration original
Relaxation time original
Sky noise original
Solar constant original
Space astrometry original
Spectral index original
Standard stars original
Stellar distance original
Syzygy original
Two-color diagrams original
Wolf diagram original
Astronomical techniques original
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Observational astronomy original
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Spectroscopy original
Astrometry original
Analytical mathematics original
Astronomical object identification original
Astronomical optics original
CCD observation original
Coronographic imaging original
Direct imaging original
Doppler imaging original
Doppler shift original
Drift scan imaging original
Faber-Jackson distance original
Field of view original
High time resolution astrophysics original
Interferometry original
Magnetospheric radio emissions original
Optical observation original
Photometry original
Pointing accuracy original
Polarimetry original
Reverberation mapping original
Scaling relations original
Exoplanet detection methods original
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Exoplanet astronomy original
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Astrometry original
Direct imaging original
Gravitational microlensing original
Magnetospheric radio emissions original
Polarimetry original
Radial velocity original
Timing variation methods original
Transit photometry original
Planetary science original
unstar this property dcterms modified equal to or less than 2018-09-20T21:29:03Zequal to or more than 2018-09-20T21:29:03Z
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Solar system astronomy original
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Atmospheric science original
Impact phenomena original
Interplanetary magnetic fields original
Interplanetary physics original
Planetary alignment original
Planetary atmospheres original
Planetary magnetosphere original
Planetary structure original
Planetary system formation original
Planetary theory original
Satellite formation original
Solar-planetary interactions original
Surface gravity original
Intrinsic variable stars original
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Variable stars original
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Cataclysmic variable stars original
Eruptive variable stars original
Herbig-Haro objects original
Magnetic variable stars original
Pulsating variable stars original
Magnetic stars original
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Chemically peculiar stars original
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Am stars original
Bp stars original
Magnetars original
Magnetic variable stars original
Mercury-manganese stars original
Chemically peculiar stars original
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Stellar types original
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Magnetic stars original
Am stars original
Ap stars original
Bp stars original
CEMP stars original
Carbon stars original
Chemically peculiar giant stars original
Heavy metal stars original
Helium weak stars original
Helium-poor stars original
Helium-rich stars original
Hydrogen deficient stars original
Lithium stars original
Manganese stars original
Mercury-manganese stars original
Peculiar variable stars original
Shell stars original
Strontium stars original
Technetium stars original
Zirconium stars original
Astrophysical magnetism original
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Astrophysical processes original
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Magnetic fields original
Cosmic magnetic fields theory original
Emerging flux tubes original
Magnetic fields original
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Astrophysical magnetism original
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Geomagnetic fields original
Magnetic anomalies original
Primordial magnetic fields original
Neutron stars original
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Compact objects original
Nuclear astrophysics original
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Magnetars original
Neutron star cores original
Pulsars original
Relativistic stars original
High-velocity clouds original
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Interstellar clouds original
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Magellanic Stream original
Magellanic Clouds original
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Local Group original
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Large Magellanic Cloud original
Magellanic Stream original
Small Magellanic Cloud original
Local Group original
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Galaxy groups original
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Magellanic Clouds original
Andromeda Galaxy original
Milky Way Galaxy original
Triangulum Galaxy original
Cosmology original
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Anthropic principle original
Astronomical radiation sources original
Astrophysical dust processes original
Bianchi cosmology original
Big Bang theory original
Brane cosmology original
Cosmic inflation original
Cosmochemistry original
Cosmogony original
Cosmological evolution original
Cosmological models original
Cosmological parameters original
Cosmological phase transitions original
Hierarchical cosmology original
Large-scale structure of the universe original
Non-Gaussianity original
Observational cosmology original
Origin of the universe original
Plasma astrophysics original
Quantum cosmology original
Radiative transfer original
Redshifted original
Relativistic cosmology original
Optical phase shifting interferometry original
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Optical interferometry original
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Mach-Zehnder interferometers original
Michelson interferometry original
Interferometers original
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Astronomical instrumentation original
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Fabry-Perot interferometers original
Mach-Zehnder interferometers original
Michelson interferometers original
Late-type supergiant stars original
unstar this property dcterms modified equal to or less than 2018-09-17T18:48:21Zequal to or more than 2018-09-17T18:48:21Z
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Late-type stars original
Supergiant stars original
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K supergiant stars original
M supergiant stars original
Red supergiant stars original
M stars original
unstar this property dcterms modified equal to or less than 2018-09-13T17:15:15Zequal to or more than 2018-09-13T17:15:15Z
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Stellar spectral types original
Late-type stars original
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M dwarf stars original
M giant stars original
M subdwarf stars original
M subgiant stars original
M supergiant stars original
Me stars original
Subgiant stars original
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Evolved stars original
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A subgiant stars original
B subgiant stars original
F subgiant stars original
G subgiant stars original
K subgiant stars original
M subgiant stars original
O subgiant stars original
Stellar spectral types original
star this property dcterms created equal to or less than 2018-09-13T17:13:21Zequal to or more than 2018-09-13T17:13:21Z
unstar this property dcterms modified equal to or less than 2018-09-13T17:16:52Zequal to or more than 2018-09-13T17:16:52Z
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Stellar types original
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M stars original
A stars original
B stars original
F stars original
G stars original
K stars original
O stars original
OB stars original
R stars original
S stars original
Late-type stars original
unstar this property dcterms modified equal to or less than 2018-08-30T20:47:21Zequal to or more than 2018-08-30T20:47:21Z
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Stellar types original
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Late-type dwarf stars original
Late-type giant stars original
Late-type supergiant stars original
M stars original
K stars original
N stars original
R stars original
S stars original
Solar corona original
unstar this property dcterms modified equal to or less than 2018-09-07T17:40:19Zequal to or more than 2018-09-07T17:40:19Z
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Solar atmosphere original
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Active solar corona original
Quiet solar corona original
Solar E coronal region original
Solar F coronal region original
Solar K coronal region original
Solar M coronal region original
Solar coronal heating original
Solar coronal holes original
Solar coronal lines original
Solar coronal loops original
Solar coronal plumes original
Solar coronal radio emission original
Solar coronal seismology original
Solar coronal streamers original
Solar coronal transients original
Solar coronal waves original
Solar transition region original
Late-type giant stars original
unstar this property dcterms modified equal to or less than 2017-01-23T19:48:12Zequal to or more than 2017-01-23T19:48:12Z
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Late-type stars original
Giant stars original
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Heavy metal stars original
Irregular variable stars original
K giant stars original
M giant stars original
Mira variable stars original
Semi-regular variable stars original
Dwarf stars original
star this property dcterms created equal to or less than 2018-09-13T17:00:09Zequal to or more than 2018-09-13T17:00:09Z
unstar this property dcterms modified equal to or less than 2018-09-14T17:07:07Zequal to or more than 2018-09-14T17:07:07Z
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Stellar evolutionary types original
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A dwarf stars original
B dwarf stars original
F dwarf stars original
G dwarf stars original
K dwarf stars original
M dwarf stars original
O dwarf stars original
T dwarfs original
Late-type dwarf stars original
unstar this property dcterms modified equal to or less than 2017-01-23T19:47:36Zequal to or more than 2017-01-23T19:47:36Z
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Late-type stars original
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K dwarf stars original
L dwarfs original
M dwarf stars original
T dwarfs original
Intergalactic clouds original
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Intergalactic medium original
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Damped Lyman-alpha systems original
Intergalactic dust clouds original
Lyman limit systems original
Lyman-alpha forest clouds original
Metal line absorbers original
Spectroscopy original
unstar this property dcterms modified equal to or less than 2018-09-20T15:33:57Zequal to or more than 2018-09-20T15:33:57Z
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Astronomical techniques original
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Atomic spectroscopy original
Lyman alpha forest original
Mass spectrometry original
Molecular spectroscopy original
Black holes original
unstar this property dcterms modified equal to or less than 2018-09-13T15:23:20Zequal to or more than 2018-09-13T15:23:20Z
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Compact objects original
High energy astrophysics original
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Astrophysical black holes original
Classical black holes original
Galaxies original
unstar this property dcterms modified equal to or less than 2018-08-30T20:05:22Zequal to or more than 2018-08-30T20:05:22Z
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Galactic and extragalactic astronomy original
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Field galaxies original
Active galaxies original
Compact galaxies original
Companion galaxies original
Disk galaxies original
Double galaxies original
Dwarf galaxies original
Early-type galaxies original
Elliptical galaxies original
Emission line galaxies original
Giant galaxies original
High-redshift galaxies original
High-velocity stars original
Infrared excess galaxies original
Interacting galaxies original
Irregular galaxies original
Late-type galaxies original
Low surface brightness galaxies original
Lyman-alpha galaxies original
Lyman-break galaxies original
Primordial galaxies original
Protogalaxies original
Quasar-galaxy pairs original
Quenched galaxies original
Radio jets original
Starburst galaxies original
Lunar features original
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Selenology original
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Lunar craters original
Lunar domes original
Lunar highlands original
Lunar maria original
Lunar mountains original
Lunar rays original
Lunar rilles original
Lunar transient phenomena original
Celestial mechanics original
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Gravitation original
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Apparent superluminal motion original
Astrodynamics original
Close encounters original
Lunar theory original
N-body problem original
Orbits original
Perturbation methods original
Three-body problem original
Two-body problem original
Lunar science original
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Solar system astronomy original
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Selenology original
Lunar atmosphere original
Lunar evolution original
Lunar origin original
Lunar phase original
Lunar theory original
Selenology original
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Lunar science original
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Lunar features original
Lunar interior original
Lunar surface original
Lunar geodesy original
Lunar gravitational field original
Lunar magnetic fields original
Lunar interior original
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Selenology original
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Lunar composition original
Lunar seismology original
Solar system astronomy original
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Planetary science original
Lunar science original
Earth-moon system original
Solar system original
Astronomical methods original
unstar this property dcterms modified equal to or less than 2018-08-29T15:13:49Zequal to or more than 2018-08-29T15:13:49Z
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Observational astronomy original
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Amateur astronomy original
Astrophotography original
Computational astronomy original
Cosmic ray astronomy original
Gamma-ray astronomy original
Gravitational wave astronomy original
Ground-based astronomy original
Infrared astronomy original
Neutrino astronomy original
Observational cosmology original
Radar astronomy original
Radio astronomy original
Ultraviolet astronomy original
Visible astronomy original
Visual observation original
X-ray astronomy original
Space probes original
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Space vehicles original
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Deep space probes original
Flyby missions original
Landers original
Lunar probes original
Orbiters original
Planetary probes original
Rovers original
Lunar surface original
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Selenology original
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Lunar geochronology original
Lunar impacts original
Lunar mineralogy original
Lunar petrology original
Occultation original
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Syzygy original
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Asteroid occultation original
Lunar occultation original
Occulting disks original
Radio occultation original
Orbital motion original
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Orbits original
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Apsidal motion original
Circular orbits original
Elliptical orbits original
Equation of the center original
Geocentric orbit original
Heliocentric orbit original
Hyperbolic orbit original
Keplerian orbit original
Libration original
Lunar node regression original
Osculating orbit original
Parabolic orbit original
Periodic orbit original
Polar orbit original