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- Yellow_supergiant abstract "A yellow supergiant (YSG) is a supergiant star of spectral type F or G. These stars have initial masses between about 10 and 40 solar masses, although some yellow supergiants will have lost over half of that. Lower-mass stars have lower luminosities and are seen as yellow giants. Higher-mass stars do not expand beyond blue supergiants.Most yellow supergiants are cooling and expanding rapidly towards red supergiants after leaving the main sequence, spending only a few thousand years in that phase, and so are much less common than red supergiants. Yellow supergiants are burning hydrogen in a shell after exhausting the hydrogen in their cores. Core helium ignition occurs smoothly at some point during the development of a red supergiant, but models vary on whether this occurs at the yellow supergiant stage or after the star has become a red supergiant.Yellow supergiants are in a region of the HR diagram known as the instability strip because their temperatures and luminosities cause them to be dynamically unstable. Most stars observed in the instability strip appear as variables, subgiants as RR Lyrae variables, giants as W Virginis variables (type II Cepheids), and brighter giants and supergiants as Classical Cepheids. In addition, there are much rarer yellow supergiant variables such as RV Tauri variables, thought to be post-AGB stars, and R Coronae Borealis, highly unusual carbon-rich stars with almost no hydrogen. Above the instability strip (i.e. more luminous) are found the yellow hypergiants, also unstable but with irregular pulsations and high mass loss. Yellow hypergiants are mostly stars that have already spent time as red supergiants and are evolving bluewards, although at least one example is known to be evolving for the first time into a red supergiant.It is not expected that yellow supergiants should explode as a supernova before reaching the red supergiant stage, although it is unclear if post-red supergiant yellow hypergiants might collapse and form a supernova. However, a handful of supernovae have been associated with apparent yellow supergiant progenitors that are not luminous enough to be post-red supergiants. If these are confirmed then an explanation must be found for how a star of moderate mass still with a helium core would cause a core-collapse supernova. The obvious candidate in such cases is always some form of binary interaction.".
- Yellow_supergiant thumbnail Wezen.jpg?width=300.
- Yellow_supergiant wikiPageID "18070419".
- Yellow_supergiant wikiPageLength "5356".
- Yellow_supergiant wikiPageOutDegree "25".
- Yellow_supergiant wikiPageRevisionID "700291929".
- Yellow_supergiant wikiPageWikiLink Asymptotic_giant_branch.
- Yellow_supergiant wikiPageWikiLink Blue_supergiant.
- Yellow_supergiant wikiPageWikiLink Category:F-type_supergiants.
- Yellow_supergiant wikiPageWikiLink Category:G-type_supergiants.
- Yellow_supergiant wikiPageWikiLink Category:Star_types.
- Yellow_supergiant wikiPageWikiLink Classical_Cepheid_variable.
- Yellow_supergiant wikiPageWikiLink Giant_star.
- Yellow_supergiant wikiPageWikiLink HD_33579.
- Yellow_supergiant wikiPageWikiLink Hertzsprung–Russell_diagram.
- Yellow_supergiant wikiPageWikiLink Hypergiant.
- Yellow_supergiant wikiPageWikiLink Instability_strip.
- Yellow_supergiant wikiPageWikiLink RR_Lyrae_variable.
- Yellow_supergiant wikiPageWikiLink RV_Tauri_variable.
- Yellow_supergiant wikiPageWikiLink R_Coronae_Borealis.
- Yellow_supergiant wikiPageWikiLink Red_supergiant.
- Yellow_supergiant wikiPageWikiLink Stellar_classification.
- Yellow_supergiant wikiPageWikiLink Supergiant.
- Yellow_supergiant wikiPageWikiLink W_Virginis_variable.
- Yellow_supergiant wikiPageWikiLink Yellow_hypergiant.
- Yellow_supergiant wikiPageWikiLink File:Delta_Cephei_lightcurve.jpg.
- Yellow_supergiant wikiPageWikiLink File:Wezen.jpg.
- Yellow_supergiant wikiPageWikiLinkText "F-type supergiant".
- Yellow_supergiant wikiPageWikiLinkText "YSG".
- Yellow_supergiant wikiPageWikiLinkText "Yellow supergiant".
- Yellow_supergiant wikiPageWikiLinkText "yellow supergiant".
- Yellow_supergiant wikiPageUsesTemplate Template:Reflist.
- Yellow_supergiant wikiPageUsesTemplate Template:Star.
- Yellow_supergiant wikiPageUsesTemplate Template:Supernovae.
- Yellow_supergiant subject Category:F-type_supergiants.
- Yellow_supergiant subject Category:G-type_supergiants.
- Yellow_supergiant subject Category:Star_types.
- Yellow_supergiant hypernym Star.
- Yellow_supergiant type Star.
- Yellow_supergiant type Concept.
- Yellow_supergiant comment "A yellow supergiant (YSG) is a supergiant star of spectral type F or G. These stars have initial masses between about 10 and 40 solar masses, although some yellow supergiants will have lost over half of that. Lower-mass stars have lower luminosities and are seen as yellow giants.".
- Yellow_supergiant label "Yellow supergiant".
- Yellow_supergiant sameAs Q1142197.
- Yellow_supergiant sameAs Supergegant_groga.
- Yellow_supergiant sameAs Supergigante_amarilla.
- Yellow_supergiant sameAs Supererraldoi_hori.
- Yellow_supergiant sameAs ابرغول_زرد.
- Yellow_supergiant sameAs Supergéante_jaune.
- Yellow_supergiant sameAs Supergigante_gialla.
- Yellow_supergiant sameAs 黄色超巨星.
- Yellow_supergiant sameAs 황색초거성.
- Yellow_supergiant sameAs Gul_superkjempe.
- Yellow_supergiant sameAs Żółty_nadolbrzym.
- Yellow_supergiant sameAs Supergigante_amarela.
- Yellow_supergiant sameAs m.047ns7k.
- Yellow_supergiant sameAs Жёлтый_сверхгигант.
- Yellow_supergiant sameAs Žltý_nadobor.
- Yellow_supergiant sameAs ดาวยักษ์ใหญ่เหลือง.
- Yellow_supergiant sameAs Жовтий_надгігант.
- Yellow_supergiant sameAs Q1142197.
- Yellow_supergiant sameAs 黄超巨星.
- Yellow_supergiant wasDerivedFrom Yellow_supergiant?oldid=700291929.
- Yellow_supergiant depiction Wezen.jpg.
- Yellow_supergiant isPrimaryTopicOf Yellow_supergiant.