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 equal to or less than 2018-09-13T20:20:25Zequal 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
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 remove maximum value filterequal to or more than 2018-09-14T19:14:04Z
star this property broader
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.
Zero-age main sequence stars original
unstar this property dcterms modified equal to or less than 2018-09-13T14:54:43Zequal to or more than 2018-09-13T14:54:43Z
star this property broader
Main sequence stars original
Zero-age horizontal branch stars original
unstar this property dcterms modified equal to or less than 2018-09-14T17:06:42Zequal to or more than 2018-09-14T17:06:42Z
star this property broader
Horizontal branch stars original
Young stellar objects original
unstar this property dcterms modified equal to or less than 2018-09-13T16:59:23Zequal to or more than 2018-09-13T16:59:23Z
star this property broader
Protostars original
star this property narrower
FU Orionis stars original
Herbig Ae/Be stars original
Herbig-Haro objects original
T Tauri stars original
Young disk Cepheid variable stars original
unstar this property dcterms modified equal to or less than 2017-01-23T19:43:35Zequal to or more than 2017-01-23T19:43:35Z
star this property broader
Cepheid variable stars original