The Unified Astronomy Thesaurus

Search Results

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
star this property broader
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
star this property broader
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
star this property broader
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
star this property broader
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)
DQ Herculis stars original
unstar this property dcterms modified remove maximum value filterequal to or more than 2018-09-13T20:20:25Z
star this property broader
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
Compact dwarf galaxies original
star this property dcterms created equal to or less than 2016-11-01T14:35:49Zequal to or more than 2016-11-01T14:35:49Z
unstar this property dcterms modified equal to or less than 2016-11-01T14:36:10Zequal to or more than 2016-11-01T14:36:10Z
star this property broader
Dwarf galaxies original
star this property narrower
Ultracompact dwarf galaxies original
Blue compact dwarf galaxies original
Ultracompact dwarf galaxies original
unstar this property dcterms modified equal to or less than 2016-11-01T14:36:17Zequal to or more than 2016-11-01T14:36:17Z
star this property broader
Compact dwarf galaxies original
Dwarf galaxies original
unstar this property dcterms modified equal to or less than 2016-11-01T14:36:17Zequal to or more than 2016-11-01T14:36:17Z
star this property broader
Galaxies original
star this property narrower
Compact dwarf galaxies original
Dwarf irregular galaxies original
Draco dwarf galaxy original
Dwarf elliptical galaxies original
Dwarf spheroidal galaxies original
Nucleated dwarf galaxies original
Dwarf irregular galaxies original
unstar this property dcterms modified equal to or less than 2016-11-01T17:47:51Zequal to or more than 2016-11-01T17:47:51Z
star this property broader
Dwarf galaxies original
Irregular galaxies original
Low surface brightness galaxies original
star this property dcterms created equal to or less than 2016-11-01T17:58:24Zequal to or more than 2016-11-01T17:58:24Z
unstar this property dcterms modified equal to or less than 2016-11-01T17:58:44Zequal to or more than 2016-11-01T17:58:44Z
star this property broader
Galaxies original
star this property narrower
L galaxies original