Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Vega> ?p ?o }
- Vega abstract "Vega (α Lyr, α Lyrae, Alpha Lyrae) is the brightest star in the constellation Lyra, the fifth brightest star in the night sky and the second brightest star in the northern celestial hemisphere, after Arcturus. It is a relatively close star at only 25 light-years from Earth, and, together with Arcturus and Sirius, one of the most luminous stars in the Sun's neighborhood.Vega has been extensively studied by astronomers, leading it to be termed "arguably the next most important star in the sky after the Sun." Vega was the northern pole star around 12,000 BCE and will be so again around the year 13,727 when the declination will be +86°14'. Vega was the first star other than the Sun to be photographed and the first to have its spectrum recorded. It was one of the first stars whose distance was estimated through parallax measurements. Vega has served as the baseline for calibrating the photometric brightness scale, and was one of the stars used to define the mean values for the UBV photometric system.Vega is only about a tenth of the age of the Sun, but since it is 2.1 times as massive its expected lifetime is also one tenth of that of the Sun; both stars are at present approaching the midpoint of their life expectancies. Vega has an unusually low abundance of the elements with a higher atomic number than that of helium. Vega is also a suspected variable star that may vary slightly in magnitude in a periodic manner. It is rotating rapidly with a velocity of 274 km/s at the equator. This is causing the equator to bulge outward because of centrifugal effects, and, as a result, there is a variation of temperature across the star's photosphere that reaches a maximum at the poles. From Earth, Vega is being observed from the direction of one of these poles.Based on an observed excess emission of infrared radiation, Vega appears to have a circumstellar disk of dust. This dust is likely to be the result of collisions between objects in an orbiting debris disk, which is analogous to the Kuiper belt in the Solar System. Stars that display an infrared excess because of dust emission are termed Vega-like stars.".
- Vega thumbnail Vega_in_lyra.svg?width=300.
- Vega wikiPageExternalLink 2003_vegasolar.
- Vega wikiPageExternalLink vega.htm.
- Vega wikiPageExternalLink release.shtml.
- Vega wikiPageExternalLink vega.
- Vega wikiPageID "32712".
- Vega wikiPageLength "81550".
- Vega wikiPageOutDegree "294".
- Vega wikiPageRevisionID "682983484".
- Vega wikiPageWikiLink 1_petametre.
- Vega wikiPageWikiLink 61_Cygni.
- Vega wikiPageWikiLink Absorption_line.
- Vega wikiPageWikiLink Aerobee.
- Vega wikiPageWikiLink Akkadian_language.
- Vega wikiPageWikiLink Al_Achsasi_al_Mouakket.
- Vega wikiPageWikiLink Alfonsine_Tables.
- Vega wikiPageWikiLink Alfonsine_tables.
- Vega wikiPageWikiLink Alfonso_X.
- Vega wikiPageWikiLink Alfonso_X_of_Castile.
- Vega wikiPageWikiLink Alpha_Cephei.
- Vega wikiPageWikiLink Alpha_Librae.
- Vega wikiPageWikiLink Altair.
- Vega wikiPageWikiLink Ancient_Egypt.
- Vega wikiPageWikiLink Ancient_Greece.
- Vega wikiPageWikiLink Ap_and_Bp_star.
- Vega wikiPageWikiLink Ap_and_Bp_stars.
- Vega wikiPageWikiLink Apparent_magnitude.
- Vega wikiPageWikiLink Aquila_(constellation).
- Vega wikiPageWikiLink Arabic.
- Vega wikiPageWikiLink Arabic_language.
- Vega wikiPageWikiLink Arcturus.
- Vega wikiPageWikiLink Assyrian_people.
- Vega wikiPageWikiLink Asterism_(astronomy).
- Vega wikiPageWikiLink Astrolabe.
- Vega wikiPageWikiLink Astrologer.
- Vega wikiPageWikiLink Astrology.
- Vega wikiPageWikiLink Astronomical_Units.
- Vega wikiPageWikiLink Astronomical_interferometer.
- Vega wikiPageWikiLink Astronomical_spectroscopy.
- Vega wikiPageWikiLink Astronomical_unit.
- Vega wikiPageWikiLink Astrophotography.
- Vega wikiPageWikiLink Atomic_number.
- Vega wikiPageWikiLink Babylon.
- Vega wikiPageWikiLink Balmer_series.
- Vega wikiPageWikiLink Bayer_designation.
- Vega wikiPageWikiLink Behenian_fixed_star.
- Vega wikiPageWikiLink Beta_Aquilae.
- Vega wikiPageWikiLink Blueshift.
- Vega wikiPageWikiLink Bonner_Durchmusterung.
- Vega wikiPageWikiLink Bright_Star_Catalogue.
- Vega wikiPageWikiLink CHARA_array.
- Vega wikiPageWikiLink CNO_cycle.
- Vega wikiPageWikiLink Carl_Sagan.
- Vega wikiPageWikiLink Castor_(star).
- Vega wikiPageWikiLink Castor_Moving_Group.
- Vega wikiPageWikiLink Category:A-type_main-sequence_stars.
- Vega wikiPageWikiLink Category:Bayer_objects.
- Vega wikiPageWikiLink Category:Castor_Moving_Group.
- Vega wikiPageWikiLink Category:Circumstellar_disks.
- Vega wikiPageWikiLink Category:Delta_Scuti_variables.
- Vega wikiPageWikiLink Category:Flamsteed_objects.
- Vega wikiPageWikiLink Category:Gliese_and_GJ_objects.
- Vega wikiPageWikiLink Category:HR_objects.
- Vega wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- Vega wikiPageWikiLink Category:Hipparcos_objects.
- Vega wikiPageWikiLink Category:Hypothetical_planetary_systems.
- Vega wikiPageWikiLink Category:Lambda_Boötis_stars.
- Vega wikiPageWikiLink Category:Lyra_(constellation).
- Vega wikiPageWikiLink Category:Northern_pole_stars.
- Vega wikiPageWikiLink Category:Stars_with_proper_names.
- Vega wikiPageWikiLink Category:Vega.
- Vega wikiPageWikiLink Celestial_sphere.
- Vega wikiPageWikiLink Centrifugal_force.
- Vega wikiPageWikiLink Chevrolet.
- Vega wikiPageWikiLink Chevrolet_Vega.
- Vega wikiPageWikiLink Chinese_mythology.
- Vega wikiPageWikiLink Chromium.
- Vega wikiPageWikiLink Circumpolar_star.
- Vega wikiPageWikiLink Circumstellar_disk.
- Vega wikiPageWikiLink Classical_planet.
- Vega wikiPageWikiLink Columba_(constellation).
- Vega wikiPageWikiLink Comet.
- Vega wikiPageWikiLink Constellation.
- Vega wikiPageWikiLink Contact_(novel).
- Vega wikiPageWikiLink Convection_zone.
- Vega wikiPageWikiLink Cornelius_Agrippa.
- Vega wikiPageWikiLink Corona.
- Vega wikiPageWikiLink Coronagraph.
- Vega wikiPageWikiLink Coronal_hole.
- Vega wikiPageWikiLink Cosmic_dust.
- Vega wikiPageWikiLink Culmination.
- Vega wikiPageWikiLink Cygnus_(constellation).
- Vega wikiPageWikiLink Daguerreotype.
- Vega wikiPageWikiLink David_Ciardi.
- Vega wikiPageWikiLink David_Dunlap_Observatory.
- Vega wikiPageWikiLink Debris_disk.
- Vega wikiPageWikiLink Declination.
- Vega wikiPageWikiLink Delta_Scuti_variable.
- Vega wikiPageWikiLink Deneb.