Matches in DBpedia 2015-10 for { <http://dbpedia.org/resource/Alpha_Pavonis> ?p ?o }
- Alpha_Pavonis abstract "Peacock is a star in the southern constellation Pavo, near the shared border with the Telescopium constellation. Its name was assigned by Her Majesty's Nautical Almanac Office in the late 1930s during the creation of the Air Almanac, a navigational almanac for the Royal Air Force. Of the fifty-seven stars included in the new almanac, two had no classical names: Epsilon Carinae and Alpha Pavonis. The RAF insisted that all of the stars must have names, so new names were invented. Alpha Pavonis was named "Peacock" ('pavo' is Latin for 'peacock') whilst Epsilon Carinae was called "Avior".At an apparent magnitude of 1.94, this is the brightest star in Pavo. Based upon parallax measurements, this star is about 179 light-years (55 parsecs) distant from the Earth. It has an estimated six times the Sun's mass and 5–6 times the Sun's radius, but 2,200 times the luminosity of the Sun. However, Tetzlaff et al. (2011) suggest a much higher mass of 9 times the mass of the Sun. The effective temperature of the photosphere is 18,000 K, which gives the star a blue-white hue. A stellar classification of B2 IV suggests it is a subgiant star that has begun to evolve from the main sequence with the exhaustion of the hydrogen at its core.Stars with the mass of Peacock are believed not to have a convection zone near their surface. Hence the material found in the outer atmosphere is not processed by the nuclear fusion occurring at the core. This means that the surface abundance of elements should be representative of the material out of which it originally formed. In particular, the surface abundance of deuterium should not change during the star's main sequence lifetime. The measured ratio of deuterium to hydrogen in this star amounts to less than 5 × 10−6, which suggests this star may have formed in a region with an unusually low abundance of deuterium, or else the deuterium was consumed by some means. A possible scenario for the latter is that the deuterium was burned through while Peacock was a pre-main-sequence star.Peacock is a spectroscopic binary consisting of a pair of stars that orbit around each other with a period of 11.753 days. However, in part because the two stars have not been individually resolved, little is known about the companion. The system may be a member of the Tucana-Horologium association of stars that share a common motion through space. The estimated age of this association is 30 million years, which, as the members share a common origin, suggests a similar age for Alpha Pavonis. However, Tetzlaff et al. (2011) suggest an age for this star of only 200,000 years. This star has a peculiar velocity of 13 km s−1 relative to its neighbors.".
- Alpha_Pavonis thumbnail Pavo_IAU.svg?width=300.
- Alpha_Pavonis wikiPageID "1522379".
- Alpha_Pavonis wikiPageLength "9541".
- Alpha_Pavonis wikiPageOutDegree "44".
- Alpha_Pavonis wikiPageRevisionID "648642461".
- Alpha_Pavonis wikiPageWikiLink Air_Almanac.
- Alpha_Pavonis wikiPageWikiLink Binary_star.
- Alpha_Pavonis wikiPageWikiLink Bright_Star_Catalogue.
- Alpha_Pavonis wikiPageWikiLink Catalogues_of_Fundamental_Stars.
- Alpha_Pavonis wikiPageWikiLink Category:B-type_subgiants.
- Alpha_Pavonis wikiPageWikiLink Category:Bayer_objects.
- Alpha_Pavonis wikiPageWikiLink Category:HR_objects.
- Alpha_Pavonis wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- Alpha_Pavonis wikiPageWikiLink Category:Hipparcos_objects.
- Alpha_Pavonis wikiPageWikiLink Category:Pavo_(constellation).
- Alpha_Pavonis wikiPageWikiLink Category:Spectroscopic_binaries.
- Alpha_Pavonis wikiPageWikiLink Category:Stars_with_proper_names.
- Alpha_Pavonis wikiPageWikiLink Constellation.
- Alpha_Pavonis wikiPageWikiLink Convection_zone.
- Alpha_Pavonis wikiPageWikiLink Cordoba_Durchmusterung.
- Alpha_Pavonis wikiPageWikiLink Deuterium.
- Alpha_Pavonis wikiPageWikiLink Durchmusterung.
- Alpha_Pavonis wikiPageWikiLink Earth.
- Alpha_Pavonis wikiPageWikiLink Effective_temperature.
- Alpha_Pavonis wikiPageWikiLink Epsilon_Carinae.
- Alpha_Pavonis wikiPageWikiLink FK5.
- Alpha_Pavonis wikiPageWikiLink HM_Nautical_Almanac_Office.
- Alpha_Pavonis wikiPageWikiLink Henry_Draper_Catalogue.
- Alpha_Pavonis wikiPageWikiLink Henry_Draper_catalogue.
- Alpha_Pavonis wikiPageWikiLink Her_Majestys_Nautical_Almanac_Office.
- Alpha_Pavonis wikiPageWikiLink Hipparcos.
- Alpha_Pavonis wikiPageWikiLink Hipparcos_catalogue.
- Alpha_Pavonis wikiPageWikiLink Main_sequence.
- Alpha_Pavonis wikiPageWikiLink Nuclear_fusion.
- Alpha_Pavonis wikiPageWikiLink Optical_resolution.
- Alpha_Pavonis wikiPageWikiLink Parallax.
- Alpha_Pavonis wikiPageWikiLink Pavo_(constellation).
- Alpha_Pavonis wikiPageWikiLink Peculiar_velocity.
- Alpha_Pavonis wikiPageWikiLink Photosphere.
- Alpha_Pavonis wikiPageWikiLink Pre-main-sequence_star.
- Alpha_Pavonis wikiPageWikiLink Royal_Air_Force.
- Alpha_Pavonis wikiPageWikiLink Smithsonian_Astrophysical_Observatory_Star_Catalog.
- Alpha_Pavonis wikiPageWikiLink Solar_luminosity.
- Alpha_Pavonis wikiPageWikiLink Solar_mass.
- Alpha_Pavonis wikiPageWikiLink Solar_radius.
- Alpha_Pavonis wikiPageWikiLink Spectroscopic_binary.
- Alpha_Pavonis wikiPageWikiLink Star.
- Alpha_Pavonis wikiPageWikiLink Stellar_association.
- Alpha_Pavonis wikiPageWikiLink Stellar_atmosphere.
- Alpha_Pavonis wikiPageWikiLink Stellar_classification.
- Alpha_Pavonis wikiPageWikiLink Stellar_kinematics.
- Alpha_Pavonis wikiPageWikiLink Subgiant.
- Alpha_Pavonis wikiPageWikiLink Subgiant_star.
- Alpha_Pavonis wikiPageWikiLink Telescopium.
- Alpha_Pavonis wikiPageWikiLink File:Cercle_rouge_100%25.svg.
- Alpha_Pavonis wikiPageWikiLink File:Pavo_IAU.svg.
- Alpha_Pavonis wikiPageWikiLinkText "Alpha Pavonis".
- Alpha_Pavonis wikiPageWikiLinkText "Peacock".
- Alpha_Pavonis wikiPageWikiLinkText "α Pav".
- Alpha_Pavonis ageMyr "0.2".
- Alpha_Pavonis appmagV "1.94".
- Alpha_Pavonis bV "−0.20".
- Alpha_Pavonis class "B2 IV".
- Alpha_Pavonis constell Pavo_(constellation).
- Alpha_Pavonis epoch "J2000".
- Alpha_Pavonis gravity "3.8".
- Alpha_Pavonis hasPhotoCollection Alpha_Pavonis.
- Alpha_Pavonis luminosity "2200".
- Alpha_Pavonis mass "6.3".
- Alpha_Pavonis mass "9".
- Alpha_Pavonis mass "to".
- Alpha_Pavonis pError "0.52".
- Alpha_Pavonis parallax "18.24".
- Alpha_Pavonis propMoDec "−86.02".
- Alpha_Pavonis propMoRa "6.9".
- Alpha_Pavonis radialV "+2.0".
- Alpha_Pavonis radius "4.5".
- Alpha_Pavonis rotationalVelocity "39".
- Alpha_Pavonis temperature "18000".
- Alpha_Pavonis uB "−0.71".
- Alpha_Pavonis wikiPageUsesTemplate Template:Convert.
- Alpha_Pavonis wikiPageUsesTemplate Template:Reflist.
- Alpha_Pavonis wikiPageUsesTemplate Template:Starbox_astrometry.
- Alpha_Pavonis wikiPageUsesTemplate Template:Starbox_begin.
- Alpha_Pavonis wikiPageUsesTemplate Template:Starbox_catalog.
- Alpha_Pavonis wikiPageUsesTemplate Template:Starbox_character.
- Alpha_Pavonis wikiPageUsesTemplate Template:Starbox_detail.
- Alpha_Pavonis wikiPageUsesTemplate Template:Starbox_end.
- Alpha_Pavonis wikiPageUsesTemplate Template:Starbox_image.
- Alpha_Pavonis wikiPageUsesTemplate Template:Starbox_observe.
- Alpha_Pavonis wikiPageUsesTemplate Template:Starbox_reference.
- Alpha_Pavonis wikiPageUsesTemplate Template:Stars_of_Pavo.
- Alpha_Pavonis subject Category:B-type_subgiants.
- Alpha_Pavonis subject Category:Bayer_objects.
- Alpha_Pavonis subject Category:HR_objects.
- Alpha_Pavonis subject Category:Henry_Draper_Catalogue_objects.
- Alpha_Pavonis subject Category:Hipparcos_objects.
- Alpha_Pavonis subject Category:Pavo_(constellation).
- Alpha_Pavonis subject Category:Spectroscopic_binaries.