Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/VV_Cephei> ?p ?o }
- VV_Cephei abstract "VV Cephei, also known as HD 208816, is an eclipsing binary star system located in the constellation Cepheus, approximately 5,000 light years from Earth. A red supergiant fills the system's Roche lobe when closest to its companion blue star, the latter appearing to be on the main sequence. Matter flows from the red supergiant onto the blue companion for at least part of the orbit and the hot star is obscured by a large disk of material. The red supergiant primary, known as VV Cephei A, is currently recognised as one of the largest stars in the galaxy, with an estimated solar radius of 1,050. Although VV Cephei is an extremely large star showing high mass loss and having some emissions lines, the spectral luminosity class and absolute magnitude do not qualify it as a hypergiant.It should be possible to calculate the masses of eclipsing binary stars with some accuracy, but in this case mass loss, changes in the orbital parameters, a disk obscuring the hot secondary, and doubt about the distance of the system have led to wildly varying estimates. Calculations before the most recent primary and secondary eclipses had started to settle on masses of around 20 for both stars, but more recent papers have suggested that even this is too high. Evolutionary models show that the initial mass of a star reaching the red supergiant stage as a star like VV Cephei would be no more than 25 times the Sun, and obviously considerably lower now. Like Betelgeuse, VV Cephei A is plagued by phenomena intrinsic to large diffuse stars that make them difficult to measure with precision. VV Cephei is not entirely spherical, being surrounded by opaque shells of a highly extended atmosphere, which, coupled with limb darkening, unstable luminosity, and other factors, make it difficult to determine its true size. Some researchers still hold that VV Cephei is a normal AGB star about 500 times the radius of the Sun, and not a hypergiant, including results from the most recent eclipse.".
- VV_Cephei thumbnail VV_Cephei.png?width=300.
- VV_Cephei wikiPageExternalLink alapre.pl?-c=21+56+39.144+%2B63+37+32.01&button=N%26B.
- VV_Cephei wikiPageExternalLink vv-cephei.shtml.
- VV_Cephei wikiPageExternalLink VVCephei.html.
- VV_Cephei wikiPageExternalLink aas_largest_stars_050110.html.
- VV_Cephei wikiPageExternalLink three_largest_stars.html.
- VV_Cephei wikiPageID "3673870".
- VV_Cephei wikiPageLength "9856".
- VV_Cephei wikiPageOutDegree "30".
- VV_Cephei wikiPageRevisionID "703952497".
- VV_Cephei wikiPageWikiLink Betelgeuse.
- VV_Cephei wikiPageWikiLink Binary_star.
- VV_Cephei wikiPageWikiLink Black_body.
- VV_Cephei wikiPageWikiLink Category:B-type_main-sequence_stars.
- VV_Cephei wikiPageWikiLink Category:Cepheus_(constellation).
- VV_Cephei wikiPageWikiLink Category:Eclipsing_binaries.
- VV_Cephei wikiPageWikiLink Category:M-type_supergiants.
- VV_Cephei wikiPageWikiLink Category:Objects_named_with_variable_star_designations.
- VV_Cephei wikiPageWikiLink Celestia.
- VV_Cephei wikiPageWikiLink Cepheus_(constellation).
- VV_Cephei wikiPageWikiLink Constellation.
- VV_Cephei wikiPageWikiLink Effective_temperature.
- VV_Cephei wikiPageWikiLink Electromagnetic_radiation.
- VV_Cephei wikiPageWikiLink File:VV_Cephei.png.
- VV_Cephei wikiPageWikiLink Hipparcos.
- VV_Cephei wikiPageWikiLink Hypergiant.
- VV_Cephei wikiPageWikiLink Limb_darkening.
- VV_Cephei wikiPageWikiLink List_of_largest_stars.
- VV_Cephei wikiPageWikiLink Main_sequence.
- VV_Cephei wikiPageWikiLink Minute_and_second_of_arc.
- VV_Cephei wikiPageWikiLink Mu_Cephei.
- VV_Cephei wikiPageWikiLink Naked_eye.
- VV_Cephei wikiPageWikiLink Red_supergiant.
- VV_Cephei wikiPageWikiLink Roche_lobe.
- VV_Cephei wikiPageWikiLink Solar_radius.
- VV_Cephei wikiPageWikiLink VY_Canis_Majoris.
- VV_Cephei wikiPageWikiLink File:Cepheus_constellation_crop_VV_Cephei_location.png.
- VV_Cephei wikiPageWikiLink File:Sun_and_VV_Cephei_A.svg.
- VV_Cephei wikiPageWikiLinkText "VV Cep".
- VV_Cephei wikiPageWikiLinkText "VV Cephei A".
- VV_Cephei wikiPageWikiLinkText "VV Cephei".
- VV_Cephei absmagV "-6".
- VV_Cephei appmagV "4.91".
- VV_Cephei bV "1.6".
- VV_Cephei caption "VV Cep A as it appears on Celestia.".
- VV_Cephei class "M2 Iab / B0-2V".
- VV_Cephei constell Cepheus_(constellation).
- VV_Cephei dec "+63° 37′ 32.01″".
- VV_Cephei distLy "4.9".
- VV_Cephei distPc "1.5".
- VV_Cephei epoch "J2000".
- VV_Cephei luminosity "200000".
- VV_Cephei pError "0.2".
- VV_Cephei parallax "1.33".
- VV_Cephei ra "78999.144".
- VV_Cephei radius "1050".
- VV_Cephei simbad "VV_Cep".
- VV_Cephei temperature "3800".
- VV_Cephei title List_of_largest_stars.
- VV_Cephei uB "0.3".
- VV_Cephei wikiPageUsesTemplate Template:Commons_category.
- VV_Cephei wikiPageUsesTemplate Template:Reflist.
- VV_Cephei wikiPageUsesTemplate Template:S-aft.
- VV_Cephei wikiPageUsesTemplate Template:S-bef.
- VV_Cephei wikiPageUsesTemplate Template:S-end.
- VV_Cephei wikiPageUsesTemplate Template:S-start.
- VV_Cephei wikiPageUsesTemplate Template:S-ttl.
- VV_Cephei wikiPageUsesTemplate Template:Sky.
- VV_Cephei wikiPageUsesTemplate Template:Starbox_astrometry.
- VV_Cephei wikiPageUsesTemplate Template:Starbox_begin.
- VV_Cephei wikiPageUsesTemplate Template:Starbox_catalog.
- VV_Cephei wikiPageUsesTemplate Template:Starbox_character.
- VV_Cephei wikiPageUsesTemplate Template:Starbox_detail.
- VV_Cephei wikiPageUsesTemplate Template:Starbox_end.
- VV_Cephei wikiPageUsesTemplate Template:Starbox_image.
- VV_Cephei wikiPageUsesTemplate Template:Starbox_observe.
- VV_Cephei wikiPageUsesTemplate Template:Starbox_reference.
- VV_Cephei wikiPageUsesTemplate Template:Stars_of_Cepheus.
- VV_Cephei years "1998".
- VV_Cephei subject Category:B-type_main-sequence_stars.
- VV_Cephei subject Category:Cepheus_(constellation).
- VV_Cephei subject Category:Eclipsing_binaries.
- VV_Cephei subject Category:M-type_supergiants.
- VV_Cephei subject Category:Objects_named_with_variable_star_designations.
- VV_Cephei hypernym System.
- VV_Cephei type CelestialBody.
- VV_Cephei type Place.
- VV_Cephei type Star.
- VV_Cephei type Catalogue.
- VV_Cephei type Redirect.
- VV_Cephei type Location.
- VV_Cephei type Place.
- VV_Cephei type Thing.
- VV_Cephei comment "VV Cephei, also known as HD 208816, is an eclipsing binary star system located in the constellation Cepheus, approximately 5,000 light years from Earth. A red supergiant fills the system's Roche lobe when closest to its companion blue star, the latter appearing to be on the main sequence. Matter flows from the red supergiant onto the blue companion for at least part of the orbit and the hot star is obscured by a large disk of material.".
- VV_Cephei label "VV Cephei".
- VV_Cephei sameAs Q603657.
- VV_Cephei sameAs في_في_الملتهب.
- VV_Cephei sameAs VV_Cephei.
- VV_Cephei sameAs VV_Цефей.