The Unified Astronomy Thesaurus

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Zero-age main sequence stars original
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Main sequence stars 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
Stellar evolutionary tracks original
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Stellar evolutionary models original
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Hayashi track original
Henyey track 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
Galaxy abundances original
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Galaxy properties original
Chemical abundances original
Galaxy physics original
Delta Delphini variable stars original
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Pulsating 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
RRab variable stars original
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RR Lyrae variable stars original
RRc variable stars original
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RR Lyrae 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
Delta Scuti variable stars original
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Multi-periodic variable stars original
Pulsating variable stars original
Short period variable stars original
W Virginis variable stars original
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Cepheid variable stars original
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.
Population II Cepheid variable stars original
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Population II stars original
Type II supernovae original
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Core-collapse supernovae original
Chandrasekhar limit original
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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.
Optical double stars original
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Visual observation original
Celestial equator original
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Equatorial coordinate system original
Yerkes classification original
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Stellar classification 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
Light curve classification original
star this property dcterms created equal to or less than 2018-08-27T18:57:58Zequal to or more than 2018-08-27T18:57:58Z
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Time series analysis original
Light curves original
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Photometry original
Stellar E coronal regions original
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Stellar coronae original
Stellar F coronal regions original
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Stellar coronae original