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• Epsilon_Aurigae abstract "Epsilon Aurigae (ε Aur, ε Aurigae) is the Bayer designation for a star in the northern constellation of Auriga. It is traditionally known as Almaaz, Haldus, or Al Anz. Epsilon Aurigae is an unusual eclipsing binary system comprising an F0 supergiant and a companion which is generally accepted to be a huge dark disk orbiting an unknown object, possibly a binary system of two small B-type stars. About every 27 years, Epsilon Aurigae's brightness drops from an apparent visual magnitude of +2.92 to +3.83. This dimming lasts 640–730 days. In addition to this eclipse, the system also has a low amplitude pulsation with a non-consistent period of around 66 days. The distance to the system is still a subject of debate, but modern estimates place it approximately 2,000 light years from Earth. Epsilon Aurigae was first suspected to be a variable star when German astronomer Johann Fritsch observed it in 1821. Later observations by Eduard Heis and Friedrich Wilhelm Argelander reinforced Fritsch's initial suspicions and attracted attention to the star. Hans Ludendorff, however, was the first to study it in great detail. His work revealed that the system was an eclipsing binary variable, a star that dims when its partner obscures its light.Epsilon Aurigae's eclipsing companion has been subject to much debate since the object does not emit as much light as is expected for an object its size. As of 2008, the most popularly accepted model for this companion object is a binary star system surrounded by a massive, opaque disk of dust; theories speculating that the object is a large, semitransparent star or a black hole have since been discarded.".
• Epsilon_Aurigae thumbnail Auriga_constellation_map.png?width=300.
• Epsilon_Aurigae wikiPageExternalLink ap100108.html.
• Epsilon_Aurigae wikiPageExternalLink how-to-find-capella-and-auriga-tips-for-locating-capella-star-and-auriga-constellation.
• Epsilon_Aurigae wikiPageExternalLink epsaur.htm.
• Epsilon_Aurigae wikiPageExternalLink 8607841.stm.
• Epsilon_Aurigae wikiPageExternalLink 100407-star-eclipse-epsilon-aurigae-nature-pictures.
• Epsilon_Aurigae wikiPageExternalLink vsx.aavso.org.
• Epsilon_Aurigae wikiPageExternalLink eps_aur.shtml.
• Epsilon_Aurigae wikiPageExternalLink almaaz.html.
• Epsilon_Aurigae wikiPageExternalLink Epsilon_Aurigae.html.
• Epsilon_Aurigae wikiPageExternalLink EpsilonAurigae.html.
• Epsilon_Aurigae wikiPageExternalLink watch?v=9gWwP3WRWDI.
• Epsilon_Aurigae wikiPageID "2101873".
• Epsilon_Aurigae wikiPageRevisionID "591219768".
• Epsilon_Aurigae absmagV "-9.1".
• Epsilon_Aurigae appmagV "2.98".
• Epsilon_Aurigae axisUnitless "18.1".
• Epsilon_Aurigae bV "+0.54".
• Epsilon_Aurigae component "ε Aur A".
• Epsilon_Aurigae component "ε Aur B".
• Epsilon_Aurigae constell Auriga_(constellation).
• Epsilon_Aurigae epoch "J2000".
• Epsilon_Aurigae gravity "4".
• Epsilon_Aurigae gravity "≲ 1.0".
• Epsilon_Aurigae hasPhotoCollection Epsilon_Aurigae.
• Epsilon_Aurigae inclination "89".
• Epsilon_Aurigae luminosityBolometric "37875".
• Epsilon_Aurigae mass "2.2".
• Epsilon_Aurigae node "264".
• Epsilon_Aurigae pError "1.29".
• Epsilon_Aurigae parallax "1.53".
• Epsilon_Aurigae propMoDec "–2.66 ± 0.75".
• Epsilon_Aurigae propMoRa "–0.86 ± 1.38".
• Epsilon_Aurigae rI "0.45".
• Epsilon_Aurigae radialV "–2.5".
• Epsilon_Aurigae rotationalVelocity "54".
• Epsilon_Aurigae simbad "HD+31964".
• Epsilon_Aurigae temperature "15000".
• Epsilon_Aurigae temperature "7750".
• Epsilon_Aurigae uB "+0.30".
• Epsilon_Aurigae variable Algol_variable.
• Epsilon_Aurigae subject Category:Algol_variables.
• Epsilon_Aurigae subject Category:Auriga_(constellation).
• Epsilon_Aurigae subject Category:Bayer_objects.
• Epsilon_Aurigae subject Category:Eclipsing_binaries.
• Epsilon_Aurigae subject Category:F-type_supergiants.
• Epsilon_Aurigae subject Category:Henry_Draper_Catalogue_objects.
• Epsilon_Aurigae subject Category:Hipparcos_objects.
• Epsilon_Aurigae subject Category:Stars_with_proper_names.
• Epsilon_Aurigae type AlgolVariables.
• Epsilon_Aurigae type BayerObjects.
• Epsilon_Aurigae type BinaryStar109221070.
• Epsilon_Aurigae type CelestialBody109239740.
• Epsilon_Aurigae type EclipsingBinaries.
• Epsilon_Aurigae type HIPObjects.
• Epsilon_Aurigae type HenryDraperCatalogueObjects.
• Epsilon_Aurigae type NaturalObject100019128.
• Epsilon_Aurigae type Object100002684.
• Epsilon_Aurigae type PhysicalEntity100001930.
• Epsilon_Aurigae type Star109444100.
• Epsilon_Aurigae type StarsWithProperNames.
• Epsilon_Aurigae type Thing100002452.
• Epsilon_Aurigae type Variable109468959.
• Epsilon_Aurigae type Whole100003553.
• Epsilon_Aurigae type CelestialBody.
• Epsilon_Aurigae type Star.
• Epsilon_Aurigae type PhysicalBody.
• Epsilon_Aurigae comment "Epsilon Aurigae (ε Aur, ε Aurigae) is the Bayer designation for a star in the northern constellation of Auriga. It is traditionally known as Almaaz, Haldus, or Al Anz. Epsilon Aurigae is an unusual eclipsing binary system comprising an F0 supergiant and a companion which is generally accepted to be a huge dark disk orbiting an unknown object, possibly a binary system of two small B-type stars.".
• Epsilon_Aurigae label "Al Anz".
• Epsilon_Aurigae label "Almaaz".
• Epsilon_Aurigae label "Almaaz".
• Epsilon_Aurigae label "Epsilon Aurigae".
• Epsilon_Aurigae label "Epsilon Aurigae".
• Epsilon_Aurigae label "Epsilon Aurigae".
• Epsilon_Aurigae label "Epsilon Aurigae".
• Epsilon_Aurigae label "Epsilon Aurigae".
• Epsilon_Aurigae label "Эпсилон Возничего".
• Epsilon_Aurigae label "ぎょしゃ座イプシロン星".
• Epsilon_Aurigae label "柱一".
• Epsilon_Aurigae sameAs Almaaz.
• Epsilon_Aurigae sameAs Αλμάζ_(αστέρας).
• Epsilon_Aurigae sameAs Almaaz.
• Epsilon_Aurigae sameAs Epsilon_Aurigae.
• Epsilon_Aurigae sameAs Epsilon_Aurigae.
• Epsilon_Aurigae sameAs Epsilon_Aurigae.
• Epsilon_Aurigae sameAs ぎょしゃ座イプシロン星.
• Epsilon_Aurigae sameAs 알마즈.
• Epsilon_Aurigae sameAs Al_Anz.
• Epsilon_Aurigae sameAs Epsilon_Aurigae.
• Epsilon_Aurigae sameAs Epsilon_Aurigae.
• Epsilon_Aurigae sameAs m.06m7l6.
• Epsilon_Aurigae sameAs Q13222.
• Epsilon_Aurigae sameAs Q13222.
• Epsilon_Aurigae sameAs Epsilon_Aurigae.
• Epsilon_Aurigae wasDerivedFrom Epsilon_Aurigae?oldid=591219768.
• Epsilon_Aurigae depiction Auriga_constellation_map.png.
• Epsilon_Aurigae isPrimaryTopicOf Epsilon_Aurigae.
• Epsilon_Aurigae name "Epsilon Aurigae A".