Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/AG_Carinae> ?p ?o }
- AG_Carinae abstract "AG Carinae (AG Car) is a star in the constellation Carina. It is classified as a luminous blue variable and is one of the most luminous stars in the Milky Way. The large distance (20,000 light-years) and intervening dust mean that the star is not usually visible to the naked eye; its apparent brightness varies irregularly between 5.7m and 9.0m.The star is surrounded by a nebula of ejected material at 0.4-1.2pc from the star. The nebula contains around 15 M☉, all lost from the star around 10,000 years ago. There is an 8.8pc wide empty cavity in the interstellar medium around the star, presumably cleared by fast winds earlier in the star's life.AG Carinae is apparently in a transitional phase between a massive class O blue supergiant and a Wolf–Rayet star, where it is highly unstable and suffers from erratic pulsations, occasional larger outbursts, and rare massive eruptions. The spectral type varies between WN11 at visual minimum and an early A hypergiant at maximum. At visual minimum the star is about 65 R☉ and 20,000-24,000K, while at maximum it is over 400 R☉ and 8,000K. The temperature varies at different minima.One study calculated that the bolometric luminosity of AG Carinae decreases during the S Doradus outbursts, unlike most LBVs which remain at approximately constant luminosity. The luminosity drops from around 1.5 million L☉ at visual minimum to around 1 million L☉ at visual maximum, possibly due to the energy required to expand a considerable fraction of the star.Evolutionary models of the star suggest that it had a low rotation rate for much of its life, but current observations show fairly rapid rotation.Models of LBV progenitors of type IIb supernovae list AG Carinae as matching the final stellar spectrum prior to core collapse, although the models are for stars with 20 to 25 times the mass of the Sun while AG Carinae is thought to be considerably larger. The initial mass of the star would have been around 100 M☉ and is now thought to be 55-70 M☉.".
- AG_Carinae thumbnail AG_Carinae_(HD_94910).png?width=300.
- AG_Carinae wikiPageExternalLink images_misc.html.
- AG_Carinae wikiPageID "8758323".
- AG_Carinae wikiPageLength "8066".
- AG_Carinae wikiPageOutDegree "36".
- AG_Carinae wikiPageRevisionID "701658839".
- AG_Carinae wikiPageWikiLink American_Association_of_Variable_Star_Observers.
- AG_Carinae wikiPageWikiLink Apparent_magnitude.
- AG_Carinae wikiPageWikiLink Carina_(constellation).
- AG_Carinae wikiPageWikiLink Category:A-type_hypergiants.
- AG_Carinae wikiPageWikiLink Category:Carina_(constellation).
- AG_Carinae wikiPageWikiLink Category:Durchmusterung_objects.
- AG_Carinae wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- AG_Carinae wikiPageWikiLink Category:Hipparcos_objects.
- AG_Carinae wikiPageWikiLink Category:Luminous_blue_variables.
- AG_Carinae wikiPageWikiLink Category:Objects_named_with_variable_star_designations.
- AG_Carinae wikiPageWikiLink Category:Wolf–Rayet_stars.
- AG_Carinae wikiPageWikiLink Constellation.
- AG_Carinae wikiPageWikiLink Durchmusterung.
- AG_Carinae wikiPageWikiLink Henry_Draper_Catalogue.
- AG_Carinae wikiPageWikiLink Hipparcos.
- AG_Carinae wikiPageWikiLink Hubble_Space_Telescope.
- AG_Carinae wikiPageWikiLink Hypergiant.
- AG_Carinae wikiPageWikiLink Infrared.
- AG_Carinae wikiPageWikiLink Interstellar_medium.
- AG_Carinae wikiPageWikiLink Light-year.
- AG_Carinae wikiPageWikiLink List_of_most_luminous_stars.
- AG_Carinae wikiPageWikiLink Luminous_blue_variable.
- AG_Carinae wikiPageWikiLink Milky_Way.
- AG_Carinae wikiPageWikiLink Nebula.
- AG_Carinae wikiPageWikiLink S_Doradus.
- AG_Carinae wikiPageWikiLink Smithsonian_Astrophysical_Observatory_Star_Catalog.
- AG_Carinae wikiPageWikiLink Star.
- AG_Carinae wikiPageWikiLink Stellar_classification.
- AG_Carinae wikiPageWikiLink Supergiant.
- AG_Carinae wikiPageWikiLink Supernova.
- AG_Carinae wikiPageWikiLink Wolf–Rayet_star.
- AG_Carinae wikiPageWikiLink File:AG-Car-Lightcurve-AAVSO.png.
- AG_Carinae wikiPageWikiLink File:AG_Carinae_(HD_94910).png.
- AG_Carinae wikiPageWikiLinkText "AG Car".
- AG_Carinae wikiPageWikiLinkText "AG Carinae".
- AG_Carinae absmagV "~-8".
- AG_Carinae appmagV "6.96".
- AG_Carinae bV "+0.61".
- AG_Carinae class "LBV".
- AG_Carinae constell Carina_(constellation).
- AG_Carinae distPc "6000".
- AG_Carinae epoch "J2000".
- AG_Carinae luminosity "1.5".
- AG_Carinae mass "55".
- AG_Carinae pError "0.7".
- AG_Carinae parallax "0.19".
- AG_Carinae propMoDec "+2.45".
- AG_Carinae propMoRa "−5.89".
- AG_Carinae radius "50".
- AG_Carinae rotation "13".
- AG_Carinae rotation "days".
- AG_Carinae rotationalVelocity "220".
- AG_Carinae temperature "8000".
- AG_Carinae uB "–0.58".
- AG_Carinae variable Luminous_blue_variable.
- AG_Carinae wikiPageUsesTemplate Template:DEC.
- AG_Carinae wikiPageUsesTemplate Template:RA.
- AG_Carinae wikiPageUsesTemplate Template:Reflist.
- AG_Carinae wikiPageUsesTemplate Template:Solar_luminosity.
- AG_Carinae wikiPageUsesTemplate Template:Solar_mass.
- AG_Carinae wikiPageUsesTemplate Template:Solar_radius.
- AG_Carinae wikiPageUsesTemplate Template:Starbox_astrometry.
- AG_Carinae wikiPageUsesTemplate Template:Starbox_begin.
- AG_Carinae wikiPageUsesTemplate Template:Starbox_catalog.
- AG_Carinae wikiPageUsesTemplate Template:Starbox_character.
- AG_Carinae wikiPageUsesTemplate Template:Starbox_detail.
- AG_Carinae wikiPageUsesTemplate Template:Starbox_end.
- AG_Carinae wikiPageUsesTemplate Template:Starbox_image.
- AG_Carinae wikiPageUsesTemplate Template:Starbox_observe.
- AG_Carinae wikiPageUsesTemplate Template:Starbox_reference.
- AG_Carinae wikiPageUsesTemplate Template:Stars_of_Carina.
- AG_Carinae subject Category:A-type_hypergiants.
- AG_Carinae subject Category:Carina_(constellation).
- AG_Carinae subject Category:Durchmusterung_objects.
- AG_Carinae subject Category:Henry_Draper_Catalogue_objects.
- AG_Carinae subject Category:Hipparcos_objects.
- AG_Carinae subject Category:Luminous_blue_variables.
- AG_Carinae subject Category:Objects_named_with_variable_star_designations.
- AG_Carinae subject Category:Wolf–Rayet_stars.
- AG_Carinae hypernym Star.
- AG_Carinae type CelestialBody.
- AG_Carinae type Place.
- AG_Carinae type Star.
- AG_Carinae type Variable.
- AG_Carinae type Location.
- AG_Carinae type Place.
- AG_Carinae type Thing.
- AG_Carinae comment "AG Carinae (AG Car) is a star in the constellation Carina. It is classified as a luminous blue variable and is one of the most luminous stars in the Milky Way. The large distance (20,000 light-years) and intervening dust mean that the star is not usually visible to the naked eye; its apparent brightness varies irregularly between 5.7m and 9.0m.The star is surrounded by a nebula of ejected material at 0.4-1.2pc from the star.".
- AG_Carinae label "AG Carinae".
- AG_Carinae sameAs Q1193097.
- AG_Carinae sameAs AG_Carinae.
- AG_Carinae sameAs AG_Carinae.
- AG_Carinae sameAs AG_Carinae.