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- Proxima_Centauri abstract "Proxima Centauri (Latin proxima, meaning "next to" or "nearest to") is a red dwarf about 4.24 light-years from the Sun, inside the G-cloud, in the constellation of Centaurus. It was discovered in 1915 by Scottish astronomer Robert Innes, the Director of the Union Observatory in South Africa, and is the nearest known star to the Sun, although it is too faint to be seen with the naked eye, with an apparent magnitude of 11.05. Its distance to the second- and third-nearest stars, which form the bright binary Alpha Centauri, is 0.237 ± 0.011 ly (15,000 ± 700 AU). Proxima Centauri is very likely part of a triple star system with Alpha Centauri A and B.Because of the proximity of this star, its distance from the Sun and angular diameter can be measured directly, from which it can be determined that its diameter is about one-seventh of that of the Sun. Proxima Centauri's mass is about an eighth of the Sun's, and its average density is about 40 times that of the Sun. Although it has a very low average luminosity, Proxima is a flare star that undergoes random dramatic increases in brightness because of magnetic activity. The star's magnetic field is created by convection throughout the stellar body, and the resulting flare activity generates a total X-ray emission similar to that produced by the Sun. The mixing of the fuel at Proxima Centauri's core through convection and the star's relatively low energy-production rate suggest that it will be a main-sequence star for another four trillion years, or nearly 300 times the current age of the universe.Searches for companions orbiting Proxima Centauri have been unsuccessful, ruling out the presence of brown dwarfs and supermassive planets. Precision radial velocity surveys have also ruled out the presence of super-Earths within the star's habitable zone. The detection of smaller objects will require the use of new instruments, such as the proposed James Webb Space Telescope. Because Proxima Centauri is a red dwarf and a flare star, whether a planet orbiting this star could support life is disputed. Nevertheless, because of the star's proximity to Earth, it has been proposed as a destination for interstellar travel.".
- Proxima_Centauri thumbnail New_shot_of_Proxima_Centauri,_our_nearest_neighbour.jpg?width=300.
- Proxima_Centauri wikiPageExternalLink ap020715.html.
- Proxima_Centauri wikiPageExternalLink proxima.
- Proxima_Centauri wikiPageExternalLink alp-cent3.htm.
- Proxima_Centauri wikiPageExternalLink PageAlphaCen006.htm.
- Proxima_Centauri wikiPageExternalLink alphacen.htm.
- Proxima_Centauri wikiPageExternalLink ?ra=14.495264&de=-62.67948000000001&zoom=8&show_grid=1&show_constellation_lines=1&show_constellation_boundaries=1&show_const_names=0&show_galaxies=1&show_box=1&box_ra=14.495264&box_de=-62.67948&box_width=50&box_height=50&img_source=DSS2.
- Proxima_Centauri wikiPageID "81887".
- Proxima_Centauri wikiPageRevisionID "606500961".
- Proxima_Centauri absmagV "15.49".
- Proxima_Centauri ageGyr "4.85".
- Proxima_Centauri align "right".
- Proxima_Centauri appmag "5.35".
- Proxima_Centauri appmag1Passband "J".
- Proxima_Centauri appmagV "11.05".
- Proxima_Centauri bV "1.9".
- Proxima_Centauri caption "The two bright stars are Alpha Centauri and Beta Centauri. The faint red star in the center of the red circle is Proxima Centauri. Taken with Canon 85mm f/1.8 lens with 11 frames stacked, each frame exposed 30 seconds.".
- Proxima_Centauri caption "This illustration shows the comparative sizes of the Sun, α Centauri A, α Centauri B, and Proxima Centauri".
- Proxima_Centauri class "M5.5 Ve".
- Proxima_Centauri colwidth "30".
- Proxima_Centauri constell Centaurus.
- Proxima_Centauri direction "vertical".
- Proxima_Centauri epoch Epoch_(astronomy).
- Proxima_Centauri equinox "J2000.0".
- Proxima_Centauri hasPhotoCollection Proxima_Centauri.
- Proxima_Centauri image "Alpha centauri size.png".
- Proxima_Centauri image "Alpha, Beta and Proxima Centauri.jpg".
- Proxima_Centauri luminosityBolometric "0.0017".
- Proxima_Centauri metalFe "0.21".
- Proxima_Centauri pError "0.3".
- Proxima_Centauri parallax "768.7".
- Proxima_Centauri propMoDec "769.33".
- Proxima_Centauri propMoRa "−3775.40".
- Proxima_Centauri rotation "7214400.0".
- Proxima_Centauri simbad "V645+Cen".
- Proxima_Centauri uB "1.43".
- Proxima_Centauri variable Flare_star.
- Proxima_Centauri width "280".
- Proxima_Centauri subject Category:Centaurus_(constellation).
- Proxima_Centauri subject Category:Flare_stars.
- Proxima_Centauri subject Category:Gliese_and_GJ_objects.
- Proxima_Centauri subject Category:Hipparcos_objects.
- Proxima_Centauri subject Category:M-type_main-sequence_stars.
- Proxima_Centauri subject Category:Objects_named_with_variable_star_designations.
- Proxima_Centauri subject Category:Proxima_Centauri.
- Proxima_Centauri subject Category:Stars_with_proper_names.
- Proxima_Centauri type CelestialBody109239740.
- Proxima_Centauri type FlareStar109281252.
- Proxima_Centauri type FlareStars.
- Proxima_Centauri type HIPObjects.
- Proxima_Centauri type M-typeMainSequenceStars.
- Proxima_Centauri type NaturalObject100019128.
- Proxima_Centauri type Object100002684.
- Proxima_Centauri type ObjectsNamedWithVariableStarDesignations.
- Proxima_Centauri type PhysicalEntity100001930.
- Proxima_Centauri type RedDwarf109406198.
- Proxima_Centauri type RedDwarfStars.
- Proxima_Centauri type Star109444100.
- Proxima_Centauri type StarsWithProperNames.
- Proxima_Centauri type Whole100003553.
- Proxima_Centauri type CelestialBody.
- Proxima_Centauri type Star.
- Proxima_Centauri type PhysicalBody.
- Proxima_Centauri comment "Proxima Centauri (Latin proxima, meaning "next to" or "nearest to") is a red dwarf about 4.24 light-years from the Sun, inside the G-cloud, in the constellation of Centaurus. It was discovered in 1915 by Scottish astronomer Robert Innes, the Director of the Union Observatory in South Africa, and is the nearest known star to the Sun, although it is too faint to be seen with the naked eye, with an apparent magnitude of 11.05.".
- Proxima_Centauri label "Proxima Centauri".
- Proxima_Centauri label "Proxima Centauri".
- Proxima_Centauri label "Proxima Centauri".
- Proxima_Centauri label "Proxima Centauri".
- Proxima_Centauri label "Proxima Centauri".
- Proxima_Centauri label "Proxima Centauri".
- Proxima_Centauri label "Proxima Centauri".
- Proxima_Centauri label "Próxima Centauri".
- Proxima_Centauri label "Проксима Центавра".
- Proxima_Centauri label "قنطور الأقرب".
- Proxima_Centauri label "プロキシマ・ケンタウリ".
- Proxima_Centauri label "比邻星".
- Proxima_Centauri sameAs Proxima_Centauri.
- Proxima_Centauri sameAs Proxima_Centauri.
- Proxima_Centauri sameAs Εγγύτατος_Κενταύρου.
- Proxima_Centauri sameAs Próxima_Centauri.
- Proxima_Centauri sameAs Proxima_Centauri.
- Proxima_Centauri sameAs Proxima_Centauri.
- Proxima_Centauri sameAs Proxima_Centauri.
- Proxima_Centauri sameAs Proxima_Centauri.
- Proxima_Centauri sameAs プロキシマ・ケンタウリ.
- Proxima_Centauri sameAs 센타우루스자리_프록시마.
- Proxima_Centauri sameAs Proxima_Centauri.
- Proxima_Centauri sameAs Proxima_Centauri.
- Proxima_Centauri sameAs Proxima_Centauri.
- Proxima_Centauri sameAs m.0l1js.
- Proxima_Centauri sameAs Q14266.
- Proxima_Centauri sameAs Q14266.
- Proxima_Centauri sameAs Proxima_Centauri.
- Proxima_Centauri wasDerivedFrom Proxima_Centauri?oldid=606500961.
- Proxima_Centauri depiction New_shot_of_Proxima_Centauri,_our_nearest_neighbour.jpg.
- Proxima_Centauri isPrimaryTopicOf Proxima_Centauri.
- Proxima_Centauri name "Proxima Centauri".