Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Proxima_Centauri> ?p ?o }
- 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 the 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, but its orbital period may be greater than 500,000 years.Because of Proxima Centauri's proximity, its distance from Earth 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 (M☉), 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 its relatively low energy-production rate mean 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 James Webb Space Telescope, which is scheduled for deployment in 2018. Because Proxima Centauri is a red dwarf and a flare star, whether a planet orbiting it 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 proxima-centauri.
- 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 wikiPageLength "57361".
- Proxima_Centauri wikiPageOutDegree "191".
- Proxima_Centauri wikiPageRevisionID "707585958".
- Proxima_Centauri wikiPageWikiLink 27th_parallel_north.
- Proxima_Centauri wikiPageWikiLink Absolute_magnitude.
- Proxima_Centauri wikiPageWikiLink Advanced_Satellite_for_Cosmology_and_Astrophysics.
- Proxima_Centauri wikiPageWikiLink Age_of_the_universe.
- Proxima_Centauri wikiPageWikiLink Alpha_Centauri.
- Proxima_Centauri wikiPageWikiLink Angular_diameter.
- Proxima_Centauri wikiPageWikiLink Aperture.
- Proxima_Centauri wikiPageWikiLink Apparent_magnitude.
- Proxima_Centauri wikiPageWikiLink Apsis.
- Proxima_Centauri wikiPageWikiLink Astrometry.
- Proxima_Centauri wikiPageWikiLink Astronomical_unit.
- Proxima_Centauri wikiPageWikiLink Aurelia_and_Blue_Moon.
- Proxima_Centauri wikiPageWikiLink Bayer_designation.
- Proxima_Centauri wikiPageWikiLink Beta_Centauri.
- Proxima_Centauri wikiPageWikiLink Binary_star.
- Proxima_Centauri wikiPageWikiLink Blue_dwarf_(red-dwarf_stage).
- Proxima_Centauri wikiPageWikiLink Brown_dwarf.
- Proxima_Centauri wikiPageWikiLink Cape_of_Good_Hope.
- Proxima_Centauri wikiPageWikiLink Cassiopeia_(constellation).
- Proxima_Centauri wikiPageWikiLink Catalog_of_Components_of_Double_and_Multiple_Stars.
- Proxima_Centauri wikiPageWikiLink Category:Alpha_Centauri.
- Proxima_Centauri wikiPageWikiLink Category:Astronomical_objects_discovered_in_1915.
- Proxima_Centauri wikiPageWikiLink Category:Centaurus_(constellation).
- Proxima_Centauri wikiPageWikiLink Category:Flare_stars.
- Proxima_Centauri wikiPageWikiLink Category:Gliese_and_GJ_objects.
- Proxima_Centauri wikiPageWikiLink Category:Hipparcos_objects.
- Proxima_Centauri wikiPageWikiLink Category:M-type_main-sequence_stars.
- Proxima_Centauri wikiPageWikiLink Category:Objects_named_with_variable_star_designations.
- Proxima_Centauri wikiPageWikiLink Category:Stars_with_proper_names.
- Proxima_Centauri wikiPageWikiLink Centaurus.
- Proxima_Centauri wikiPageWikiLink Cerro_Tololo_Inter-American_Observatory.
- Proxima_Centauri wikiPageWikiLink Chandra_X-ray_Observatory.
- Proxima_Centauri wikiPageWikiLink Chemical_element.
- Proxima_Centauri wikiPageWikiLink Chromosphere.
- Proxima_Centauri wikiPageWikiLink Circumstellar_habitable_zone.
- Proxima_Centauri wikiPageWikiLink Constellation.
- Proxima_Centauri wikiPageWikiLink Convection.
- Proxima_Centauri wikiPageWikiLink Convection_zone.
- Proxima_Centauri wikiPageWikiLink Corona.
- Proxima_Centauri wikiPageWikiLink Coronal_mass_ejection.
- Proxima_Centauri wikiPageWikiLink Density.
- Proxima_Centauri wikiPageWikiLink EXOSAT.
- Proxima_Centauri wikiPageWikiLink Earth.
- Proxima_Centauri wikiPageWikiLink Earth_mass.
- Proxima_Centauri wikiPageWikiLink Einstein_Observatory.
- Proxima_Centauri wikiPageWikiLink Epoch_(astronomy).
- Proxima_Centauri wikiPageWikiLink Erg.
- Proxima_Centauri wikiPageWikiLink Faint_Object_Spectrograph.
- Proxima_Centauri wikiPageWikiLink Fine_Guidance_Sensor.
- Proxima_Centauri wikiPageWikiLink Flare_star.
- Proxima_Centauri wikiPageWikiLink G-Cloud.
- Proxima_Centauri wikiPageWikiLink Galactic_Center.
- Proxima_Centauri wikiPageWikiLink Gas_giant.
- Proxima_Centauri wikiPageWikiLink Giant_planet.
- Proxima_Centauri wikiPageWikiLink Gibor_Basri.
- Proxima_Centauri wikiPageWikiLink Gliese_Catalogue_of_Nearby_Stars.
- Proxima_Centauri wikiPageWikiLink Habitability_of_red_dwarf_systems.
- Proxima_Centauri wikiPageWikiLink Harlow_Shapley.
- Proxima_Centauri wikiPageWikiLink Harold_Alden.
- Proxima_Centauri wikiPageWikiLink Hertzsprung–Russell_diagram.
- Proxima_Centauri wikiPageWikiLink Hipparcos.
- Proxima_Centauri wikiPageWikiLink Hubble_Space_Telescope.
- Proxima_Centauri wikiPageWikiLink Infrared.
- Proxima_Centauri wikiPageWikiLink Interferometry.
- Proxima_Centauri wikiPageWikiLink International_Celestial_Reference_System.
- Proxima_Centauri wikiPageWikiLink Interstellar_travel.
- Proxima_Centauri wikiPageWikiLink James_Webb_Space_Telescope.
- Proxima_Centauri wikiPageWikiLink Joan_Voûte.
- Proxima_Centauri wikiPageWikiLink Johannesburg.
- Proxima_Centauri wikiPageWikiLink Jupiter.
- Proxima_Centauri wikiPageWikiLink Jupiter_mass.
- Proxima_Centauri wikiPageWikiLink Kelvin.
- Proxima_Centauri wikiPageWikiLink Latitude.
- Proxima_Centauri wikiPageWikiLink Light.
- Proxima_Centauri wikiPageWikiLink Light-year.
- Proxima_Centauri wikiPageWikiLink List_of_nearest_stars_and_brown_dwarfs.
- Proxima_Centauri wikiPageWikiLink Luminosity.
- Proxima_Centauri wikiPageWikiLink Magnesium.
- Proxima_Centauri wikiPageWikiLink Magnetic_field.
- Proxima_Centauri wikiPageWikiLink Magnetic_moment.
- Proxima_Centauri wikiPageWikiLink Main_sequence.
- Proxima_Centauri wikiPageWikiLink Milky_Way.
- Proxima_Centauri wikiPageWikiLink Minute_and_second_of_arc.
- Proxima_Centauri wikiPageWikiLink Moon.
- Proxima_Centauri wikiPageWikiLink NASA.
- Proxima_Centauri wikiPageWikiLink Nanometre.
- Proxima_Centauri wikiPageWikiLink Nuclear_pulse_propulsion.