The Unified Astronomy Thesaurus

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Schonberg-Chandrasekhar limit original
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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 2018-09-07T15:36:55Zremove minimum value filter
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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.
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
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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
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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.
Solar coronal lines original
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Solar corona original
Stellar coronal lines original
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Stellar coronae original
Solar coronal plumes original
star this property dcterms created equal to or less than 2018-09-07T17:38:47Zequal to or more than 2018-09-07T17:38:47Z
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Solar corona original
Stellar coronal plumes original
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Stellar coronae original
Solar corona original
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Solar atmosphere original
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Solar E coronal region original
Solar coronal lines original
Solar coronal plumes original
Solar coronal transients original
Active solar corona original
Quiet solar corona 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 loops original
Solar coronal radio emission original
Solar coronal seismology original
Solar coronal streamers original
Solar coronal waves original
Solar transition region original
Stellar coronae original
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Stellar atmospheres original
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Stellar coronal lines original
Stellar coronal plumes original
Stellar E coronal regions original
Stellar F coronal regions original
Stellar K coronal regions original
Stellar M coronal regions original
Stellar coronal dimming original
Stellar coronal holes original
Stellar coronal loops original
Solar coronal transients original
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Solar corona original
Dense interstellar clouds original
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Interstellar clouds original
Solar E coronal region original
star this property dcterms created equal to or less than 2018-08-27T21:11:00Zequal to or more than 2018-08-27T21:11:00Z
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Solar corona original
Natural satellites (Extrasolar) original
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Exoplanet astronomy original
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Irregular natural satellites (Extrasolar) original
Quenched galaxies original
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Galaxies original
Galaxy quenching original
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Galaxy evolution original
Galaxy bulges original
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Galaxy structure original
Galactic bulge original
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Milky Way Galaxy physics original
Recombination (cosmology) original
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Big Bang theory original
Early universe original
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Cosmic background radiation original
Cosmic microwave background radiation original
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Cosmic background radiation original
Cosmic noise original
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Cosmic anisotropy original
Cosmic isotropy original
Sunyaev-Zeldovich effect original
Cosmic background radiation original
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Recombination (cosmology) original
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Cosmic microwave background radiation original
Galaxy clusters original
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Galactic and extragalactic astronomy original
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Abell clusters original
Bautz-Morgan type original
Coma Cluster original
High-redshift galaxy clusters original
Intracluster medium original
Perseus Cluster original
Poor galaxy clusters original
Rich galaxy clusters original
Superclusters original
Virgo Cluster original
H I line emission original
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Interstellar line emission original
Solar spectral irradiance original
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Solar physics original
Stellar F coronal regions original
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Stellar coronae original
Stellar E coronal regions original
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Stellar coronae original
Light curve classification original
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Time series analysis original
Light curves original
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Photometry original
Galaxy magnitudes original
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Galaxy properties original
Magnitude original
Magnitude original
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Astrometry original
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Galaxy magnitudes original
Absolute magnitude original
Apparent magnitude original
Integrated magnitude original
Yerkes classification original
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Stellar classification original
Celestial equator original
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Equatorial coordinate system original
Optical double stars original
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Visual observation original
Type II supernovae original
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Core-collapse supernovae original
Population II Cepheid variable stars original
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Population II stars original
W Virginis variable stars original
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Cepheid variable stars original
Delta Scuti variable stars original
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Multi-periodic variable stars original
Pulsating variable stars original
Short period variable stars original
RR Lyrae variable stars original
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Pulsating variable stars original
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RRab variable stars original
RRc variable stars original
RRd variable stars original
RRc variable stars original
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RR Lyrae variable stars original
RRab variable stars original
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RR Lyrae variable stars original
Elliptical orbits original
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Orbital elements original
Orbital motion original
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Major axis original
Minor axis original
Semimajor axis original
Semiminor axis original
Delta Delphini variable stars original
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Pulsating variable stars original
Galaxy abundances original
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Galaxy properties original
Chemical abundances original
Galaxy physics original
Galaxy properties original
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Galaxy physics original
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Galaxy abundances original
Galaxy magnitudes original
Galaxy ages original
Galaxy colors original
Galaxy fountains original
Galaxy jets original
Galaxy luminosities original
Galaxy magnetic fields original
Galaxy masses original
Galaxy radial velocities original
Galaxy radii original
Galaxy stellar content original
Scaling relations original
Stellar evolutionary tracks original
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Stellar evolutionary models original
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Hayashi track original
Henyey track original
Classification systems original
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Astronomical research original
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Galaxy classification systems original
Luminosity classification original
Stellar classification original