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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 Heinrich 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.
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- Epsilon_Aurigae wikiPageExternalLink almaaz.html.
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- Epsilon_Aurigae wikiPageID "2101873".
- Epsilon_Aurigae wikiPageLength "24604".
- Epsilon_Aurigae wikiPageOutDegree "93".
- Epsilon_Aurigae wikiPageRevisionID "679309976".
- Epsilon_Aurigae wikiPageWikiLink 26_Aurigae.
- Epsilon_Aurigae wikiPageWikiLink AAVSO.
- Epsilon_Aurigae wikiPageWikiLink Algol_variable.
- Epsilon_Aurigae wikiPageWikiLink American_Association_of_Variable_Star_Observers.
- Epsilon_Aurigae wikiPageWikiLink American_Astronomical_Society.
- Epsilon_Aurigae wikiPageWikiLink Apparent_magnitude.
- Epsilon_Aurigae wikiPageWikiLink Apparent_visual_magnitude.
- Epsilon_Aurigae wikiPageWikiLink Astronomical_unit.
- Epsilon_Aurigae wikiPageWikiLink Astronomy_Picture_of_the_Day.
- Epsilon_Aurigae wikiPageWikiLink Asymptotic_giant_branch.
- Epsilon_Aurigae wikiPageWikiLink Auriga_(constellation).
- Epsilon_Aurigae wikiPageWikiLink Bayer_designation.
- Epsilon_Aurigae wikiPageWikiLink Bengt_Strömgren.
- Epsilon_Aurigae wikiPageWikiLink Binary_star.
- Epsilon_Aurigae wikiPageWikiLink Black_hole.
- Epsilon_Aurigae wikiPageWikiLink Bonner_Durchmusterung.
- Epsilon_Aurigae wikiPageWikiLink Bright_Star_Catalogue.
- Epsilon_Aurigae wikiPageWikiLink California_Institute_of_Technology.
- Epsilon_Aurigae wikiPageWikiLink Canis_Minor.
- Epsilon_Aurigae wikiPageWikiLink Canis_Minor_(constellation).
- Epsilon_Aurigae wikiPageWikiLink Canopus.
- Epsilon_Aurigae wikiPageWikiLink Capella.
- Epsilon_Aurigae wikiPageWikiLink Capella_(star).
- Epsilon_Aurigae wikiPageWikiLink Carina_(constellation).
- Epsilon_Aurigae wikiPageWikiLink Catalogues_of_Fundamental_Stars.
- Epsilon_Aurigae wikiPageWikiLink Category:Algol_variables.
- Epsilon_Aurigae wikiPageWikiLink Category:Auriga_(constellation).
- Epsilon_Aurigae wikiPageWikiLink Category:Bayer_objects.
- Epsilon_Aurigae wikiPageWikiLink Category:Durchmusterung_objects.
- Epsilon_Aurigae wikiPageWikiLink Category:F-type_supergiants.
- Epsilon_Aurigae wikiPageWikiLink Category:Flamsteed_objects.
- Epsilon_Aurigae wikiPageWikiLink Category:HR_objects.
- Epsilon_Aurigae wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- Epsilon_Aurigae wikiPageWikiLink Category:Hipparcos_objects.
- Epsilon_Aurigae wikiPageWikiLink Category:Stars_with_proper_names.
- Epsilon_Aurigae wikiPageWikiLink Chi_Aurigae.
- Epsilon_Aurigae wikiPageWikiLink Chinese_language.
- Epsilon_Aurigae wikiPageWikiLink Circinus_X-1.
- Epsilon_Aurigae wikiPageWikiLink Citizen_Sky.
- Epsilon_Aurigae wikiPageWikiLink Citizen_science.
- Epsilon_Aurigae wikiPageWikiLink Constellation.
- Epsilon_Aurigae wikiPageWikiLink Cygnus_X-1.
- Epsilon_Aurigae wikiPageWikiLink Donald_Hoard.
- Epsilon_Aurigae wikiPageWikiLink Durchmusterung.
- Epsilon_Aurigae wikiPageWikiLink Eclipse.
- Epsilon_Aurigae wikiPageWikiLink Eclipses.
- Epsilon_Aurigae wikiPageWikiLink Eclipsing_binary.
- Epsilon_Aurigae wikiPageWikiLink Eduard_Heis.
- Epsilon_Aurigae wikiPageWikiLink Epsilon_Aurigae.
- Epsilon_Aurigae wikiPageWikiLink Eta_Aurigae.
- Epsilon_Aurigae wikiPageWikiLink FK5.
- Epsilon_Aurigae wikiPageWikiLink Far_Ultraviolet_Spectroscopic_Explorer.
- Epsilon_Aurigae wikiPageWikiLink Flamsteed_designation.
- Epsilon_Aurigae wikiPageWikiLink Friedrich_Wilhelm_Argelander.
- Epsilon_Aurigae wikiPageWikiLink Gerard_Kuiper.
- Epsilon_Aurigae wikiPageWikiLink Hans_Ludendorff.
- Epsilon_Aurigae wikiPageWikiLink Harvard_Revised_catalogue.
- Epsilon_Aurigae wikiPageWikiLink Henry_Draper_Catalogue.
- Epsilon_Aurigae wikiPageWikiLink Henry_Draper_catalogue.
- Epsilon_Aurigae wikiPageWikiLink Hipparcos.
- Epsilon_Aurigae wikiPageWikiLink Hipparcos_catalogue.
- Epsilon_Aurigae wikiPageWikiLink International_Year_of_Astronomy.
- Epsilon_Aurigae wikiPageWikiLink Johann_Bayer.
- Epsilon_Aurigae wikiPageWikiLink Julian_day.
- Epsilon_Aurigae wikiPageWikiLink Light-year.
- Epsilon_Aurigae wikiPageWikiLink Light_pollution.
- Epsilon_Aurigae wikiPageWikiLink Light_year.
- Epsilon_Aurigae wikiPageWikiLink Luminosity_class.
- Epsilon_Aurigae wikiPageWikiLink Main_sequence.
- Epsilon_Aurigae wikiPageWikiLink Modified_Julian_date.
- Epsilon_Aurigae wikiPageWikiLink NASA.
- Epsilon_Aurigae wikiPageWikiLink National_Science_Foundation.
- Epsilon_Aurigae wikiPageWikiLink Neptune.
- Epsilon_Aurigae wikiPageWikiLink Net_(Chinese_constellation).
- Epsilon_Aurigae wikiPageWikiLink Nu_Aurigae.
- Epsilon_Aurigae wikiPageWikiLink Otto_Struve.
- Epsilon_Aurigae wikiPageWikiLink Pasadena,_California.
- Epsilon_Aurigae wikiPageWikiLink Procyon.
- Epsilon_Aurigae wikiPageWikiLink Robert_Wilson_(astronomer).
- Epsilon_Aurigae wikiPageWikiLink Smithsonian_Astrophysical_Observatory_Star_Catalog.
- Epsilon_Aurigae wikiPageWikiLink Spectral_classification.
- Epsilon_Aurigae wikiPageWikiLink Spitzer_Space_Telescope.
- Epsilon_Aurigae wikiPageWikiLink Stellar_classification.