The Unified Astronomy Thesaurus

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Schonberg-Chandrasekhar limit original
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Chandrasekhar-Schonberg limit
Schoenberg-Chandrasekhar limit
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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http://astrothesaurus.org/uat/662 original
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Schonberg-Chandrasekhar limit original
Chandrasekhar limit 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.
star this property scope note Not to be confused with the Chandrasekhar limit.
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star this property contributor AAS_Frey.Katie original
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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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http://astrothesaurus.org/uat/280 original
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Comas original
star this property definition The nebulous envelope around the nucleus of a comet, formed when the comet passes close to the Sun.
star this property editorial note Needs disambiguation or creation of at least two separate terms. Wikipedia, Coma (cometary): "In astronomy, a coma (from the Greek κόμη, "hair") is the nebulous envelope around the nucleus of a comet." WIkipedia, Coma (optics): "In optics (especially telescopes), the coma (aka comatic aberration) in an optical system refers to aberration inherent to certain optical designs or due to imperfection in the lens or other components which results in off-axis point sources such as stars appearing distorted, appearing to have a tail (coma) like a comet. Specifically, coma is defined as a variation in magnification over the entrance pupil. In refractive or diffractive optical systems, especially those imaging a wide spectral range, coma can be a function of wavelength, in which case it is a form of chromatic aberration." -BG
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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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662 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.
star this property scope note Not to be confused with the Schonberg-Chandrasekhar limit.
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L galaxies original
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L-galaxies
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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http://astrothesaurus.org/uat/940 original
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L 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)
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DQ Herculis stars original
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Intermediate polar stars
Intermediate polars
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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http://astrothesaurus.org/uat/1127 original
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DQ Herculis stars 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
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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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http://astrothesaurus.org/uat/1634 original
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Field stars 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.
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Field galaxies original
unstar this property dcterms modified remove maximum value filterequal to or more than 2018-09-14T19:14:18Z
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http://astrothesaurus.org/uat/573 original
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Field 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.
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Absolute magnitude original
unstar this property dcterms modified equal to or less than 2018-08-17T17:24:59Zequal to or more than 2018-08-17T17:24:59Z
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http://astrothesaurus.org/uat/999 original
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Absolute magnitude original
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Main sequence stars original
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Stars on the main sequence
unstar this property dcterms modified equal to or less than 2018-09-14T15:23:49Zequal to or more than 2018-09-14T15:23:49Z
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http://astrothesaurus.org/uat/2052 original
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Main sequence stars original
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http://astrothesaurus.org/uat/1843 original
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Main sequence stars original
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Mars original
unstar this property dcterms modified equal to or less than 2018-08-30T21:26:45Zequal to or more than 2018-08-30T21:26:45Z
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http://astrothesaurus.org/uat/797 original
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Mars original
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