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- Eta_Centauri abstract "Eta Centauri (η Cen, η Centauri) is a star in the southern constellation of Centaurus. It has an apparent visual magnitude of +2.35 and is located at a distance of around 306 light-years (94 parsecs). In traditional Chinese astronomy, Eta Centauri was known as 庫樓二 (meaning: the Second (Star) of Koo Low).The stellar classification of this star is B1.5 Vne, indicating that it is a B-type main sequence star. The 'n' suffix means that the absorption lines are broadened from rapid rotation. It has a projected rotational velocity of 330 km s−1 and completes a full rotation in less than a day. This is a Be star as shown by the 'e' suffix, which means it has variable emissions in its hydrogen spectral lines. This emission can be modeled by a decretion disk of gas that has been ejected from the star and now follows a near Keplerian orbit around the central body. Finally it is slightly variable, and classified as a Gamma Cassiopeiae variable star with multiple periods of variability.Eta Centauri has about 12 times the mass of the Sun, placing it above the dividing line between stars that evolve into white dwarfs and those that turn into supernovae. It is radiating 8,700 times as much luminosity as the Sun from its outer atmosphere at an effective temperature of 25,700 K. This heat causes the star to glow with the blue-white hue common to B-type stars. Eta Centauri is a proper motion member of the Upper-Centaurus Lupus sub-group in the Scorpius-Centaurus OB association, the nearest such co-moving association of massive stars to the Sun.".
- Eta_Centauri thumbnail Centaurus_constellation_map.svg?width=300.
- Eta_Centauri wikiPageExternalLink etacen.html.
- Eta_Centauri wikiPageID "3117288".
- Eta_Centauri wikiPageLength "8828".
- Eta_Centauri wikiPageOutDegree "39".
- Eta_Centauri wikiPageRevisionID "681296197".
- Eta_Centauri wikiPageWikiLink Absorption_line.
- Eta_Centauri wikiPageWikiLink Apparent_magnitude.
- Eta_Centauri wikiPageWikiLink Apparent_visual_magnitude.
- Eta_Centauri wikiPageWikiLink B(e)_star.
- Eta_Centauri wikiPageWikiLink B-type_main-sequence_star.
- Eta_Centauri wikiPageWikiLink B-type_main_sequence_star.
- Eta_Centauri wikiPageWikiLink B-type_star.
- Eta_Centauri wikiPageWikiLink Be_star.
- Eta_Centauri wikiPageWikiLink Bright_Star_Catalogue.
- Eta_Centauri wikiPageWikiLink Cape_Photographic_Durchmusterung.
- Eta_Centauri wikiPageWikiLink Catalogues_of_Fundamental_Stars.
- Eta_Centauri wikiPageWikiLink Category:B-type_main-sequence_stars.
- Eta_Centauri wikiPageWikiLink Category:Bayer_objects.
- Eta_Centauri wikiPageWikiLink Category:Be_stars.
- Eta_Centauri wikiPageWikiLink Category:Centaurus_(constellation).
- Eta_Centauri wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- Eta_Centauri wikiPageWikiLink Category:Shell_stars.
- Eta_Centauri wikiPageWikiLink Category:Upper_Centaurus_Lupus.
- Eta_Centauri wikiPageWikiLink Centaurus.
- Eta_Centauri wikiPageWikiLink Centaurus_(Chinese_astronomy).
- Eta_Centauri wikiPageWikiLink Chinese_astronomy.
- Eta_Centauri wikiPageWikiLink Constellation.
- Eta_Centauri wikiPageWikiLink Cordoba_Durchmusterung.
- Eta_Centauri wikiPageWikiLink Durchmusterung.
- Eta_Centauri wikiPageWikiLink Effective_temperature.
- Eta_Centauri wikiPageWikiLink Epoch_(astronomy).
- Eta_Centauri wikiPageWikiLink Fifth_Fundamental_Catalogue.
- Eta_Centauri wikiPageWikiLink Gamma_Cassiopeiae_variable.
- Eta_Centauri wikiPageWikiLink Harvard_Revised_catalogue.
- Eta_Centauri wikiPageWikiLink Henry_Draper_Catalogue.
- Eta_Centauri wikiPageWikiLink Henry_Draper_catalogue.
- Eta_Centauri wikiPageWikiLink Hipparcos.
- Eta_Centauri wikiPageWikiLink Hipparcos_catalogue.
- Eta_Centauri wikiPageWikiLink Horn_(Chinese_constellation).
- Eta_Centauri wikiPageWikiLink Hydrogen.
- Eta_Centauri wikiPageWikiLink J2000.0.
- Eta_Centauri wikiPageWikiLink Projected_rotational_velocity.
- Eta_Centauri wikiPageWikiLink Proper_motion.
- Eta_Centauri wikiPageWikiLink Scorpius-Centaurus_Association.
- Eta_Centauri wikiPageWikiLink Scorpius–Centaurus_Association.
- Eta_Centauri wikiPageWikiLink Shell_star.
- Eta_Centauri wikiPageWikiLink Smithsonian_Astrophysical_Observatory_Star_Catalog.
- Eta_Centauri wikiPageWikiLink Spectral_line.
- Eta_Centauri wikiPageWikiLink Star.
- Eta_Centauri wikiPageWikiLink Stellar_association.
- Eta_Centauri wikiPageWikiLink Stellar_atmosphere.
- Eta_Centauri wikiPageWikiLink Stellar_classification.
- Eta_Centauri wikiPageWikiLink Stellar_kinematics.
- Eta_Centauri wikiPageWikiLink Stellar_rotation.
- Eta_Centauri wikiPageWikiLink Supernova.
- Eta_Centauri wikiPageWikiLink Supernovae.
- Eta_Centauri wikiPageWikiLink White_dwarf.
- Eta_Centauri wikiPageWikiLinkText "Eta Centauri".
- Eta_Centauri wikiPageWikiLinkText "η Cen".
- Eta_Centauri wikiPageWikiLinkText "η Centauri".
- Eta_Centauri ageMyr "5.6".
- Eta_Centauri appmagV "+2.35".
- Eta_Centauri bV "−0.215".
- Eta_Centauri class "B1.5 Vne".
- Eta_Centauri constell Centaurus.
- Eta_Centauri epoch Epoch_(astronomy).
- Eta_Centauri epoch J2000.0.
- Eta_Centauri gravity "3.2".
- Eta_Centauri hasPhotoCollection Eta_Centauri.
- Eta_Centauri luminosity "8700".
- Eta_Centauri mass "12".
- Eta_Centauri pError "0.21".
- Eta_Centauri parallax "10.67".
- Eta_Centauri propMoDec "−32.72".
- Eta_Centauri propMoRa "−34.73".
- Eta_Centauri radialV "–0.2".
- Eta_Centauri radius "5".
- Eta_Centauri rotationalVelocity "330".
- Eta_Centauri temperature "25700".
- Eta_Centauri uB "−0.862".
- Eta_Centauri variable Gamma_Cassiopeiae_variable.
- Eta_Centauri variable Shell_star.
- Eta_Centauri wikiPageUsesTemplate Template:Convert.
- Eta_Centauri wikiPageUsesTemplate Template:Reflist.
- Eta_Centauri wikiPageUsesTemplate Template:Starbox_astrometry.
- Eta_Centauri wikiPageUsesTemplate Template:Starbox_begin.
- Eta_Centauri wikiPageUsesTemplate Template:Starbox_catalog.
- Eta_Centauri wikiPageUsesTemplate Template:Starbox_character.
- Eta_Centauri wikiPageUsesTemplate Template:Starbox_detail.
- Eta_Centauri wikiPageUsesTemplate Template:Starbox_end.
- Eta_Centauri wikiPageUsesTemplate Template:Starbox_image.
- Eta_Centauri wikiPageUsesTemplate Template:Starbox_observe.
- Eta_Centauri wikiPageUsesTemplate Template:Starbox_reference.
- Eta_Centauri wikiPageUsesTemplate Template:Stars_of_Centaurus.
- Eta_Centauri subject Category:B-type_main-sequence_stars.
- Eta_Centauri subject Category:Bayer_objects.
- Eta_Centauri subject Category:Be_stars.
- Eta_Centauri subject Category:Centaurus_(constellation).