Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Brown_dwarf> ?p ?o }
- Brown_dwarf abstract "Brown dwarfs are substellar objects not massive enough to sustain hydrogen-1 fusion reactions in their cores, unlike main-sequence stars. They occupy the mass range between the heaviest gas giants and the lightest stars, with an upper limit around 75 to 80 Jupiter masses (MJ). Brown dwarfs heavier than about 13 MJ are thought to fuse deuterium and those above ~65 MJ, fuse lithium as well. Brown dwarfs may be fully convective, with no layers or chemical differentiation by depth.The defining differences between a very-low-mass brown dwarf and a giant planet (~13 MJ) are debated. One school of thought is based on formation; the other, on the physics of the interior.Part of the debate concerns whether "brown dwarfs" must, by definition, have experienced fusion at some point in their history.Stars are categorized by spectral class, with brown dwarfs being designated as types M, L, T, and Y. Despite their name, brown dwarfs are of different colors. Many brown dwarfs would likely appear magenta to the human eye, or possibly orange/red. Brown dwarfs are not very luminous at visible wavelengths.Some planets are known to orbit brown dwarfs: 2M1207b, MOA-2007-BLG-192Lb, and 2MASS J044144bAt a distance of about 6.5 light years, the nearest known brown dwarf is Luhman 16, a binary system of brown dwarfs discovered in 2013. One brown dwarf, DENIS-P J082303.1-491201 b, from an ultracool binary system, has a mass of about 28 MJ, making it the largest known exoplanet (as of March 2014).".
- Brown_dwarf thumbnail 2MASSJ22282889-431026.jpg?width=300.
- Brown_dwarf wikiPageExternalLink observbd.html.
- Brown_dwarf wikiPageExternalLink structbd.html.
- Brown_dwarf wikiPageExternalLink a.
- Brown_dwarf wikiPageExternalLink cha_halpha1.
- Brown_dwarf wikiPageExternalLink ldwarf1.html.
- Brown_dwarf wikiPageExternalLink ldwarf3.html.
- Brown_dwarf wikiPageExternalLink browndwa.html.
- Brown_dwarf wikiPageExternalLink ds3.htm.
- Brown_dwarf wikiPageExternalLink www.dwarfarchives.org.
- Brown_dwarf wikiPageExternalLink index.php?option=content&task=view&id=232.
- Brown_dwarf wikiPageExternalLink 20043.html.
- Brown_dwarf wikiPageExternalLink brown_dwarf_detectives.html.
- Brown_dwarf wikiPageExternalLink 060703_mystery_monday.html.
- Brown_dwarf wikiPageExternalLink viewpr.html?pid=12596.
- Brown_dwarf wikiPageExternalLink viewpr.html?pid=2192.
- Brown_dwarf wikiPageExternalLink enanasmarrones.html.
- Brown_dwarf wikiPageExternalLink 0410226.
- Brown_dwarf wikiPageExternalLink 0607305.
- Brown_dwarf wikiPageID "44401".
- Brown_dwarf wikiPageLength "64379".
- Brown_dwarf wikiPageOutDegree "270".
- Brown_dwarf wikiPageRevisionID "682842685".
- Brown_dwarf wikiPageWikiLink 2M0535-05.
- Brown_dwarf wikiPageWikiLink 2M1207.
- Brown_dwarf wikiPageWikiLink 2M1207b.
- Brown_dwarf wikiPageWikiLink 2MASS.
- Brown_dwarf wikiPageWikiLink 2MASS_0532+8246.
- Brown_dwarf wikiPageWikiLink 2MASS_J044144.
- Brown_dwarf wikiPageWikiLink 2MASS_J04414489+2301513.
- Brown_dwarf wikiPageWikiLink 2MASS_J044144b.
- Brown_dwarf wikiPageWikiLink 2MASS_J05325346+8246465.
- Brown_dwarf wikiPageWikiLink 2MASS_J22282889-431026.
- Brown_dwarf wikiPageWikiLink Adaptive_optics.
- Brown_dwarf wikiPageWikiLink Alkali.
- Brown_dwarf wikiPageWikiLink Alkali_metal.
- Brown_dwarf wikiPageWikiLink Ammonia.
- Brown_dwarf wikiPageWikiLink Antonio_Magazzu.
- Brown_dwarf wikiPageWikiLink Atmosphere.
- Brown_dwarf wikiPageWikiLink Benjamin_Zuckerman.
- Brown_dwarf wikiPageWikiLink Bipolar_outflow.
- Brown_dwarf wikiPageWikiLink Black_dwarf.
- Brown_dwarf wikiPageWikiLink Blue_dwarf_(red-dwarf_stage).
- Brown_dwarf wikiPageWikiLink Bolometric_luminosity.
- Brown_dwarf wikiPageWikiLink Brown-dwarf_desert.
- Brown_dwarf wikiPageWikiLink Brown_dwarf.
- Brown_dwarf wikiPageWikiLink CFBDS_J005910.90-011401.3.
- Brown_dwarf wikiPageWikiLink COROT-3b.
- Brown_dwarf wikiPageWikiLink Calcium_hydride.
- Brown_dwarf wikiPageWikiLink California_Institute_of_Technology.
- Brown_dwarf wikiPageWikiLink Carbon_monoxide.
- Brown_dwarf wikiPageWikiLink Carbon_planet.
- Brown_dwarf wikiPageWikiLink Category:Brown_dwarfs.
- Brown_dwarf wikiPageWikiLink Category:Definition_of_planet.
- Brown_dwarf wikiPageWikiLink Category:Star_types.
- Brown_dwarf wikiPageWikiLink Category:Stellar_phenomena.
- Brown_dwarf wikiPageWikiLink Category:Substellar_objects.
- Brown_dwarf wikiPageWikiLink Category:Types_of_planet.
- Brown_dwarf wikiPageWikiLink Celsius.
- Brown_dwarf wikiPageWikiLink Centaurus.
- Brown_dwarf wikiPageWikiLink Cetus.
- Brown_dwarf wikiPageWikiLink ChaHα8.
- Brown_dwarf wikiPageWikiLink Cha_110913-773444.
- Brown_dwarf wikiPageWikiLink Cha_Halpha_1.
- Brown_dwarf wikiPageWikiLink Chamaeleon.
- Brown_dwarf wikiPageWikiLink Chamaeleon_complex.
- Brown_dwarf wikiPageWikiLink Chandra_X-ray_Observatory.
- Brown_dwarf wikiPageWikiLink Chromium_hydride.
- Brown_dwarf wikiPageWikiLink Chuo_University.
- Brown_dwarf wikiPageWikiLink Circumstellar_disk.
- Brown_dwarf wikiPageWikiLink Circumstellar_habitable_zone.
- Brown_dwarf wikiPageWikiLink Cloud_collapse.
- Brown_dwarf wikiPageWikiLink Compact_star.
- Brown_dwarf wikiPageWikiLink Convection.
- Brown_dwarf wikiPageWikiLink Convective.
- Brown_dwarf wikiPageWikiLink Coronagraph.
- Brown_dwarf wikiPageWikiLink Coulomb_barrier.
- Brown_dwarf wikiPageWikiLink D._Montes.
- Brown_dwarf wikiPageWikiLink DENIS-P_J020529.0-115925.
- Brown_dwarf wikiPageWikiLink DENIS-P_J082303.1-491201_b.
- Brown_dwarf wikiPageWikiLink Dark_matter.
- Brown_dwarf wikiPageWikiLink Deep_Near_Infrared_Survey.
- Brown_dwarf wikiPageWikiLink Deep_Near_Infrared_Survey_of_the_Southern_Sky.
- Brown_dwarf wikiPageWikiLink Degenerate_matter.
- Brown_dwarf wikiPageWikiLink Degenerate_star.
- Brown_dwarf wikiPageWikiLink Deuterium.
- Brown_dwarf wikiPageWikiLink Deuterium_burning.
- Brown_dwarf wikiPageWikiLink Doppler_spectroscopy.
- Brown_dwarf wikiPageWikiLink Eccentricity_(mathematics).
- Brown_dwarf wikiPageWikiLink Eduardo_Martín.
- Brown_dwarf wikiPageWikiLink Electron_degeneracy_pressure.
- Brown_dwarf wikiPageWikiLink Epsilon_Indi.
- Brown_dwarf wikiPageWikiLink Eric_Becklin.
- Brown_dwarf wikiPageWikiLink Exoplanet.
- Brown_dwarf wikiPageWikiLink Exoplanet_Data_Explorer.
- Brown_dwarf wikiPageWikiLink Extrasolar_Planets_Encyclopaedia.
- Brown_dwarf wikiPageWikiLink Extrasolar_planet.
- Brown_dwarf wikiPageWikiLink Fornax.
- Brown_dwarf wikiPageWikiLink GD_165.