Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Delta_Ursae_Majoris> ?p ?o }
- Delta_Ursae_Majoris abstract "Delta Ursae Majoris (Delta UMa, δ Ursae Majoris, δ UMa) is the Bayer designation for a star in the northern circumpolar constellation of Ursa Major. It has the traditional names Megrez /ˈmɛɡrɛz/, and Kaffa. Megrez has an apparent magnitude of +3.3, making it the dimmest of the seven stars in the Big Dipper asterism. Parallax measurements yield a distance estimate of 58.4 light-years (17.9 parsecs) from Earth.Megrez has 63% more mass of the Sun and is about 1.4 times the Sun's radius. It has a stellar classification of A3 V, which means it is an A-type main sequence star that is generating energy at its core through the nuclear fusion of hydrogen. It shines at 14 times the luminosity of the Sun, with this energy being emitted from its outer envelope at an effective temperature of 9,480 K. This gives it the white hue typical of an A-type star.This star has an excess emission of infrared radiation, indicating the presence of circumstellar matter. This forms a debris disk around an orbital radius of 16 Astronomical Units from the star. This radius is unusually small for the estimated age of the disk, which may be explained by drag from the Poynting–Robertson effect causing the dust to spiral inward.It has two faint companions, an 11th magnitude star at an angular separation of 190 arcseconds, and a 10th magnitude star 186 arcseconds away.Megrez is a marginally outlying member of the Ursa Major moving group, an association of stars that share a common motion through space and likely formed in the same molecular cloud. The space velocity components of Delta Ursae Majoris in the galactic coordinate system are [U, V, W] = [+15.35, +1.17, –11.52] km s−1.".
- Delta_Ursae_Majoris thumbnail Ursa_Major_IAU.svg?width=300.
- Delta_Ursae_Majoris wikiPageID "2014504".
- Delta_Ursae_Majoris wikiPageLength "11145".
- Delta_Ursae_Majoris wikiPageOutDegree "56".
- Delta_Ursae_Majoris wikiPageRevisionID "682213969".
- Delta_Ursae_Majoris wikiPageWikiLink A-type_main-sequence_star.
- Delta_Ursae_Majoris wikiPageWikiLink A-type_main_sequence_star.
- Delta_Ursae_Majoris wikiPageWikiLink Alpha_Ursae_Majoris.
- Delta_Ursae_Majoris wikiPageWikiLink Angular_distance.
- Delta_Ursae_Majoris wikiPageWikiLink Angular_separation.
- Delta_Ursae_Majoris wikiPageWikiLink Antonín_Bečvář.
- Delta_Ursae_Majoris wikiPageWikiLink Apparent_magnitude.
- Delta_Ursae_Majoris wikiPageWikiLink Arcsecond.
- Delta_Ursae_Majoris wikiPageWikiLink Asterism_(astronomy).
- Delta_Ursae_Majoris wikiPageWikiLink Astronomical_Unit.
- Delta_Ursae_Majoris wikiPageWikiLink Astronomical_unit.
- Delta_Ursae_Majoris wikiPageWikiLink Bayer_designation.
- Delta_Ursae_Majoris wikiPageWikiLink Beta_Ursae_Majoris.
- Delta_Ursae_Majoris wikiPageWikiLink Big_Dipper.
- Delta_Ursae_Majoris wikiPageWikiLink Boss_General_Catalogue.
- Delta_Ursae_Majoris wikiPageWikiLink Bright_Star_Catalogue.
- Delta_Ursae_Majoris wikiPageWikiLink Catalog_of_Components_of_Double_and_Multiple_Stars.
- Delta_Ursae_Majoris wikiPageWikiLink Catalogues_of_Fundamental_Stars.
- Delta_Ursae_Majoris wikiPageWikiLink Category:A-type_main-sequence_stars.
- Delta_Ursae_Majoris wikiPageWikiLink Category:Bayer_objects.
- Delta_Ursae_Majoris wikiPageWikiLink Category:Stars_with_proper_names.
- Delta_Ursae_Majoris wikiPageWikiLink Category:Triple_star_systems.
- Delta_Ursae_Majoris wikiPageWikiLink Category:Ursa_Major_(constellation).
- Delta_Ursae_Majoris wikiPageWikiLink Chinese_language.
- Delta_Ursae_Majoris wikiPageWikiLink Circumpolar_constellation.
- Delta_Ursae_Majoris wikiPageWikiLink Crater-class_cargo_ship.
- Delta_Ursae_Majoris wikiPageWikiLink Crater_class_cargo_ship.
- Delta_Ursae_Majoris wikiPageWikiLink Debris_disk.
- Delta_Ursae_Majoris wikiPageWikiLink Effective_temperature.
- Delta_Ursae_Majoris wikiPageWikiLink Epsilon_Ursae_Majoris.
- Delta_Ursae_Majoris wikiPageWikiLink Eta_Ursae_Majoris.
- Delta_Ursae_Majoris wikiPageWikiLink Fifth_Fundamental_Catalogue.
- Delta_Ursae_Majoris wikiPageWikiLink File:Sidney_Hall_-_Uranias_Mirror_-_Ursa_Major.jpg.
- Delta_Ursae_Majoris wikiPageWikiLink Galactic_coordinate_system.
- Delta_Ursae_Majoris wikiPageWikiLink Gamma_Ursae_Majoris.
- Delta_Ursae_Majoris wikiPageWikiLink Henry_Draper_Catalogue.
- Delta_Ursae_Majoris wikiPageWikiLink Hipparcos.
- Delta_Ursae_Majoris wikiPageWikiLink Hipparcos_catalogue.
- Delta_Ursae_Majoris wikiPageWikiLink Index_Catalogue_of_Visual_Double_Stars.
- Delta_Ursae_Majoris wikiPageWikiLink Infrared_excess.
- Delta_Ursae_Majoris wikiPageWikiLink Minute_and_second_of_arc.
- Delta_Ursae_Majoris wikiPageWikiLink Mizar_and_Alcor.
- Delta_Ursae_Majoris wikiPageWikiLink Molecular_cloud.
- Delta_Ursae_Majoris wikiPageWikiLink Nuclear_fusion.
- Delta_Ursae_Majoris wikiPageWikiLink PPM_Star_Catalogue.
- Delta_Ursae_Majoris wikiPageWikiLink Parallax.
- Delta_Ursae_Majoris wikiPageWikiLink Poynting–Robertson_effect.
- Delta_Ursae_Majoris wikiPageWikiLink Purple_Forbidden_enclosure.
- Delta_Ursae_Majoris wikiPageWikiLink Skalnate_Pleso_Atlas_of_the_Heavens.
- Delta_Ursae_Majoris wikiPageWikiLink Smithsonian_Astrophysical_Observatory_Star_Catalog.
- Delta_Ursae_Majoris wikiPageWikiLink Space_velocity_(astronomy).
- Delta_Ursae_Majoris wikiPageWikiLink Star.
- Delta_Ursae_Majoris wikiPageWikiLink Star_catalogue.
- Delta_Ursae_Majoris wikiPageWikiLink Stellar_association.
- Delta_Ursae_Majoris wikiPageWikiLink Stellar_classification.
- Delta_Ursae_Majoris wikiPageWikiLink Stellar_kinematics.
- Delta_Ursae_Majoris wikiPageWikiLink USS_Megrez_(AK-126).
- Delta_Ursae_Majoris wikiPageWikiLink United_States_Navy.
- Delta_Ursae_Majoris wikiPageWikiLink Ursa_Major.
- Delta_Ursae_Majoris wikiPageWikiLink Ursa_Major_Moving_Group.
- Delta_Ursae_Majoris wikiPageWikiLink Ursa_Major_moving_group.
- Delta_Ursae_Majoris wikiPageWikiLink Washington_Double_Star_Catalog.
- Delta_Ursae_Majoris wikiPageWikiLink Zeta_Ursae_Majoris.
- Delta_Ursae_Majoris wikiPageWikiLinkText "Delta Ursae Majoris".
- Delta_Ursae_Majoris wikiPageWikiLinkText "Megrez Delta".
- Delta_Ursae_Majoris wikiPageWikiLinkText "Megrez".
- Delta_Ursae_Majoris wikiPageWikiLinkText "Star of Megrez".
- Delta_Ursae_Majoris wikiPageWikiLinkText "δ UMa".
- Delta_Ursae_Majoris wikiPageWikiLinkText "δ Ursae Majoris".
- Delta_Ursae_Majoris ageGyr "0.3".
- Delta_Ursae_Majoris appmagV "+3.312".
- Delta_Ursae_Majoris bV "+0.075".
- Delta_Ursae_Majoris class "A3 V".
- Delta_Ursae_Majoris constell Ursa_Major.
- Delta_Ursae_Majoris epoch "J2000".
- Delta_Ursae_Majoris gravity "4.49".
- Delta_Ursae_Majoris hasPhotoCollection Delta_Ursae_Majoris.
- Delta_Ursae_Majoris luminosity "14".
- Delta_Ursae_Majoris mass "1.63".
- Delta_Ursae_Majoris pError "0.25".
- Delta_Ursae_Majoris parallax "55.82".
- Delta_Ursae_Majoris propMoDec "-129.88".
- Delta_Ursae_Majoris propMoRa "+143.42".
- Delta_Ursae_Majoris radialV "-20.2".
- Delta_Ursae_Majoris radius "1.4".
- Delta_Ursae_Majoris rotationalVelocity "233".
- Delta_Ursae_Majoris temperature "9480".
- Delta_Ursae_Majoris uB "+0.067".
- Delta_Ursae_Majoris wikiPageUsesTemplate Template:Citation_needed.
- Delta_Ursae_Majoris wikiPageUsesTemplate Template:Convert.
- Delta_Ursae_Majoris wikiPageUsesTemplate Template:IPAc-en.
- Delta_Ursae_Majoris wikiPageUsesTemplate Template:Lang-ar.
- Delta_Ursae_Majoris wikiPageUsesTemplate Template:Lang-en.
- Delta_Ursae_Majoris wikiPageUsesTemplate Template:Reflist.