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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Xenobiology original
unstar this property dcterms modified remove maximum value filterequal to or more than 2018-09-20T14:28:46Z
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http://astrothesaurus.org/uat/74 original
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Xenobiology original
star this property definition "the study of synthesizing and manipulating biological devices and systems" - Wikipedia
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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 equal to or less than 2018-09-14T19:14:18Zequal 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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Astrometry original
unstar this property dcterms modified equal to or less than 2018-09-14T14:58:01Zequal to or more than 2018-09-14T14:58:01Z
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http://astrothesaurus.org/uat/1684 original
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Astrometry original
http://astrothesaurus.org/uat/489 original
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Astrometry original
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http://astrothesaurus.org/uat/1197 original
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Astrometry original
http://astrothesaurus.org/uat/1217 original
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Astrometry original
http://astrothesaurus.org/uat/1218 original
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Astrometry original
http://astrothesaurus.org/uat/1219 original
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Astrometry original
http://astrothesaurus.org/uat/1220 original
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Astrometry original
http://astrothesaurus.org/uat/1227 original
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Astrometry original
http://astrothesaurus.org/uat/131 original
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Astrometry original
http://astrothesaurus.org/uat/1332 original
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Astrometry original
http://astrothesaurus.org/uat/1337 original
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Astrometry original
http://astrothesaurus.org/uat/1385 original
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Astrometry original
http://astrothesaurus.org/uat/1394 original
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Astrometry original
http://astrothesaurus.org/uat/1463 original
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Astrometry original
http://astrothesaurus.org/uat/1481 original
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Astrometry original
http://astrothesaurus.org/uat/1541 original
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Astrometry original
http://astrothesaurus.org/uat/1553 original
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Astrometry original
http://astrothesaurus.org/uat/1564 original
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Astrometry original
http://astrothesaurus.org/uat/1595 original
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Astrometry original
http://astrothesaurus.org/uat/1677 original
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Astrometry original
http://astrothesaurus.org/uat/1724 original
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Astrometry original
http://astrothesaurus.org/uat/173 original
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Astrometry original
http://astrothesaurus.org/uat/1807 original
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Astrometry original
http://astrothesaurus.org/uat/182 original
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Astrometry original
http://astrothesaurus.org/uat/395 original
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Astrometry original
http://astrothesaurus.org/uat/449 original
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Astrometry original
http://astrothesaurus.org/uat/466 original
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Astrometry original
http://astrothesaurus.org/uat/555 original
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Astrometry original
http://astrothesaurus.org/uat/82 original
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Astrometry original
http://astrothesaurus.org/uat/85 original
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Astrometry original
http://astrothesaurus.org/uat/999 original
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Astrometry original
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Intrinsic variable stars original
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Unstable stars
unstar this property dcterms modified equal to or less than 2018-08-30T20:08:02Zequal to or more than 2018-08-30T20:08:02Z
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http://astrothesaurus.org/uat/1761 original
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Intrinsic variable stars original
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http://astrothesaurus.org/uat/1307 original
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Intrinsic variable stars original
http://astrothesaurus.org/uat/203 original
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Intrinsic variable stars original
http://astrothesaurus.org/uat/476 original
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Intrinsic variable stars original
http://astrothesaurus.org/uat/722 original
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Intrinsic variable stars original
http://astrothesaurus.org/uat/996 original
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Intrinsic variable stars original
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