Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Pi1_Ursae_Majoris> ?p ?o }
- Pi1_Ursae_Majoris abstract "Pi1 Ursae Majoris (Pi1 UMa, π¹ Ursae Majoris, π¹ UMa) is a yellow G-type main sequence dwarf with a mean apparent magnitude of +5.63. It is approximately 46.8 light years from Earth, and is a relatively young star with an age of about 200 million years. It is classified as a BY Draconis type variable star and its brightness varies by 0.08 magnitudes. In 1986, it became the first solar-type star to have the emission from an X-ray flare observed. Based upon its space velocity components, this star is a member of the Ursa Major moving group of stars that share a common motion through space.An excess of infrared radiation has been detected from this system, which suggests the presence of a debris disk. The best fit to the data indicates that there is a ring of fine debris out to a radius of about 0.4 AU, consisting of 0.25 μm grains of amorphous silicates or crystalline forsterite. There may also be a wider ring of larger (10 μm) grains out to a distance of 16 AU.".
- Pi1_Ursae_Majoris thumbnail Ursa_Major_IAU.svg?width=300.
- Pi1_Ursae_Majoris wikiPageExternalLink SECTION000610000000000000000.
- Pi1_Ursae_Majoris wikiPageExternalLink detail.php?starchoice=42438.
- Pi1_Ursae_Majoris wikiPageID "2713203".
- Pi1_Ursae_Majoris wikiPageLength "9854".
- Pi1_Ursae_Majoris wikiPageOutDegree "29".
- Pi1_Ursae_Majoris wikiPageRevisionID "682214331".
- Pi1_Ursae_Majoris wikiPageWikiLink Apparent_magnitude.
- Pi1_Ursae_Majoris wikiPageWikiLink Astronomical_unit.
- Pi1_Ursae_Majoris wikiPageWikiLink BY_Draconis_variable.
- Pi1_Ursae_Majoris wikiPageWikiLink Boss_General_Catalogue.
- Pi1_Ursae_Majoris wikiPageWikiLink Bright_Star_Catalogue.
- Pi1_Ursae_Majoris wikiPageWikiLink Category:BY_Draconis_variables.
- Pi1_Ursae_Majoris wikiPageWikiLink Category:Bayer_objects.
- Pi1_Ursae_Majoris wikiPageWikiLink Category:Circumstellar_disks.
- Pi1_Ursae_Majoris wikiPageWikiLink Category:Flamsteed_objects.
- Pi1_Ursae_Majoris wikiPageWikiLink Category:G-type_main-sequence_stars.
- Pi1_Ursae_Majoris wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- Pi1_Ursae_Majoris wikiPageWikiLink Category:Solar-type_stars.
- Pi1_Ursae_Majoris wikiPageWikiLink Category:Stars_with_proper_names.
- Pi1_Ursae_Majoris wikiPageWikiLink Category:Ursa_Major_(constellation).
- Pi1_Ursae_Majoris wikiPageWikiLink Debris_disk.
- Pi1_Ursae_Majoris wikiPageWikiLink Earth.
- Pi1_Ursae_Majoris wikiPageWikiLink Henry_Draper_Catalogue.
- Pi1_Ursae_Majoris wikiPageWikiLink Hipparcos.
- Pi1_Ursae_Majoris wikiPageWikiLink Infrared_excess.
- Pi1_Ursae_Majoris wikiPageWikiLink Light-year.
- Pi1_Ursae_Majoris wikiPageWikiLink Main_sequence.
- Pi1_Ursae_Majoris wikiPageWikiLink PPM_Star_Catalogue.
- Pi1_Ursae_Majoris wikiPageWikiLink Smithsonian_Astrophysical_Observatory_Star_Catalog.
- Pi1_Ursae_Majoris wikiPageWikiLink Star_catalogue.
- Pi1_Ursae_Majoris wikiPageWikiLink Stellar_classification.
- Pi1_Ursae_Majoris wikiPageWikiLink Stellar_kinematics.
- Pi1_Ursae_Majoris wikiPageWikiLink Ursa_Major.
- Pi1_Ursae_Majoris wikiPageWikiLink Ursa_Major_Moving_Group.
- Pi1_Ursae_Majoris wikiPageWikiLink Variable_star.
- Pi1_Ursae_Majoris wikiPageWikiLinkText "HD 72905".
- Pi1_Ursae_Majoris wikiPageWikiLinkText "Muscida".
- Pi1_Ursae_Majoris wikiPageWikiLinkText "Pi1 Ursae Majoris".
- Pi1_Ursae_Majoris wikiPageWikiLinkText "π¹ Ursae Majoris".
- Pi1_Ursae_Majoris wikiPageWikiLinkText "π¹".
- Pi1_Ursae_Majoris absmagV "4.86".
- Pi1_Ursae_Majoris ageMyr "200".
- Pi1_Ursae_Majoris appmagV "5.63".
- Pi1_Ursae_Majoris bV "+0.62".
- Pi1_Ursae_Majoris class "G1.5Vb".
- Pi1_Ursae_Majoris constell Ursa_Major.
- Pi1_Ursae_Majoris epoch "J2000".
- Pi1_Ursae_Majoris gravity "4.48".
- Pi1_Ursae_Majoris luminosity "0.97".
- Pi1_Ursae_Majoris mass "0.9".
- Pi1_Ursae_Majoris metalFe "–0.04".
- Pi1_Ursae_Majoris pError "0.37".
- Pi1_Ursae_Majoris parallax "69.66".
- Pi1_Ursae_Majoris propMoDec "+88.13 ± 0.26".
- Pi1_Ursae_Majoris propMoRa "-27.44".
- Pi1_Ursae_Majoris radialV "–13.88 ± 0.47".
- Pi1_Ursae_Majoris rotation "432000.0".
- Pi1_Ursae_Majoris rotationalVelocity "14.27".
- Pi1_Ursae_Majoris temperature "5884".
- Pi1_Ursae_Majoris uB "+0.07".
- Pi1_Ursae_Majoris variable "BY Draconis".
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:DEC.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:For.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Location_map.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Nearest_bright_star_systems.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:RA.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Reflist.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Starbox_astrometry.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Starbox_begin.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Starbox_catalog.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Starbox_character.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Starbox_detail.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Starbox_end.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Starbox_image.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Starbox_observe.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Starbox_reference.
- Pi1_Ursae_Majoris wikiPageUsesTemplate Template:Stars_of_Ursa_Major.
- Pi1_Ursae_Majoris subject Category:BY_Draconis_variables.
- Pi1_Ursae_Majoris subject Category:Bayer_objects.
- Pi1_Ursae_Majoris subject Category:Circumstellar_disks.
- Pi1_Ursae_Majoris subject Category:Flamsteed_objects.
- Pi1_Ursae_Majoris subject Category:G-type_main-sequence_stars.
- Pi1_Ursae_Majoris subject Category:Henry_Draper_Catalogue_objects.
- Pi1_Ursae_Majoris subject Category:Solar-type_stars.
- Pi1_Ursae_Majoris subject Category:Stars_with_proper_names.
- Pi1_Ursae_Majoris subject Category:Ursa_Major_(constellation).
- Pi1_Ursae_Majoris hypernym Dwarf.
- Pi1_Ursae_Majoris type CelestialBody.
- Pi1_Ursae_Majoris type Place.
- Pi1_Ursae_Majoris type Planet.
- Pi1_Ursae_Majoris type Star.
- Pi1_Ursae_Majoris type Catalogue.
- Pi1_Ursae_Majoris type Planet.
- Pi1_Ursae_Majoris type Variable.
- Pi1_Ursae_Majoris type Location.
- Pi1_Ursae_Majoris type Place.
- Pi1_Ursae_Majoris type Thing.
- Pi1_Ursae_Majoris comment "Pi1 Ursae Majoris (Pi1 UMa, π¹ Ursae Majoris, π¹ UMa) is a yellow G-type main sequence dwarf with a mean apparent magnitude of +5.63. It is approximately 46.8 light years from Earth, and is a relatively young star with an age of about 200 million years. It is classified as a BY Draconis type variable star and its brightness varies by 0.08 magnitudes. In 1986, it became the first solar-type star to have the emission from an X-ray flare observed.".