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- Pi_Aquarii abstract "Pi Aquarii (π Aqr, π Aquarii) is the Bayer designation for a binary star in the equatorial constellation of Aquarius. It shares the traditional name Seat with Delta Aquarii, where it has long been misspelled Skat. It may be from the Arabic word ši'at \"a wish\". This system has an apparent visual magnitude of a mean apparent magnitude of +4.57. Based upon parallax measurements, it is located at a distance of roughly 780 light-years (240 parsecs) from Earth.This is a binary star system with an orbital period of 84.1 days. The primary component is a B-type main sequence star with a stellar classification of B1 Ve. This is a large star with nearly eleven times the mass and over six times the radius of the Sun. Pi Aquarii shines about 7,300 times as brightly as the Sun. This energy is being radiated from its outer atmosphere at an effective temperature of 27,094, giving it the blue-hued glow of a B-type star. It is spinning rapidly with a projected rotational velocity of 215 km/s.Pi Aquarii is notable for having undergone a transition from a Be star (showing hydrogen emission lines) into an ordinary B-type star. It is classified as a Gamma Cassiopeiae type variable star and its brightness varies from magnitude +4.45 to +4.71; a range of 0.28. The dominant variability period, 83.8 ± 0.8 days, is nearly the same as the orbital period. Pi Aquarii has a reasonable chance of becoming a supernova some day.".
- Pi_Aquarii thumbnail Aquarius_IAU.svg?width=300.
- Pi_Aquarii wikiPageExternalLink AladinPreview?-c=22+25+16.6232%2B01+22+38.642&ident=*++52+Aqr&submit=Aladin+previewer.
- Pi_Aquarii wikiPageID "2859176".
- Pi_Aquarii wikiPageLength "11472".
- Pi_Aquarii wikiPageOutDegree "50".
- Pi_Aquarii wikiPageRevisionID "656299082".
- Pi_Aquarii wikiPageWikiLink Al_Achsasi_al_Mouakket.
- Pi_Aquarii wikiPageWikiLink Apparent_magnitude.
- Pi_Aquarii wikiPageWikiLink Aquarius_(constellation).
- Pi_Aquarii wikiPageWikiLink B-type_main-sequence_star.
- Pi_Aquarii wikiPageWikiLink Bayer_designation.
- Pi_Aquarii wikiPageWikiLink Binary_star.
- Pi_Aquarii wikiPageWikiLink Bright_Star_Catalogue.
- Pi_Aquarii wikiPageWikiLink Catalogues_of_Fundamental_Stars.
- Pi_Aquarii wikiPageWikiLink Category:Aquarius_(constellation).
- Pi_Aquarii wikiPageWikiLink Category:B-type_main-sequence_stars.
- Pi_Aquarii wikiPageWikiLink Category:Bayer_objects.
- Pi_Aquarii wikiPageWikiLink Category:Emission-line_stars.
- Pi_Aquarii wikiPageWikiLink Category:Flamsteed_objects.
- Pi_Aquarii wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- Pi_Aquarii wikiPageWikiLink Category:Shell_stars.
- Pi_Aquarii wikiPageWikiLink Category:Stars_with_proper_names.
- Pi_Aquarii wikiPageWikiLink Celestial_equator.
- Pi_Aquarii wikiPageWikiLink Chinese_language.
- Pi_Aquarii wikiPageWikiLink Constellation.
- Pi_Aquarii wikiPageWikiLink Delta_Aquarii.
- Pi_Aquarii wikiPageWikiLink Durchmusterung.
- Pi_Aquarii wikiPageWikiLink Effective_temperature.
- Pi_Aquarii wikiPageWikiLink Eta_Aquarii.
- Pi_Aquarii wikiPageWikiLink Gamma_Aquarii.
- Pi_Aquarii wikiPageWikiLink Henry_Draper_Catalogue.
- Pi_Aquarii wikiPageWikiLink Hipparcos.
- Pi_Aquarii wikiPageWikiLink Latin.
- Pi_Aquarii wikiPageWikiLink List_of_proper_names_of_stars.
- Pi_Aquarii wikiPageWikiLink Orbital_period.
- Pi_Aquarii wikiPageWikiLink Parallax.
- Pi_Aquarii wikiPageWikiLink Roof_(Chinese_constellation).
- Pi_Aquarii wikiPageWikiLink Shell_star.
- Pi_Aquarii wikiPageWikiLink Smithsonian_Astrophysical_Observatory_Star_Catalog.
- Pi_Aquarii wikiPageWikiLink Spectral_line.
- Pi_Aquarii wikiPageWikiLink Stellar_atmosphere.
- Pi_Aquarii wikiPageWikiLink Stellar_classification.
- Pi_Aquarii wikiPageWikiLink Stellar_rotation.
- Pi_Aquarii wikiPageWikiLink Variable_star.
- Pi_Aquarii wikiPageWikiLink Zeta_Aquarii.
- Pi_Aquarii wikiPageWikiLink File:Aquarius_IAU.svg.
- Pi_Aquarii wikiPageWikiLink File:Cercle_rouge_100%25.svg.
- Pi_Aquarii wikiPageWikiLinkText "Pi Aquarii".
- Pi_Aquarii wikiPageWikiLinkText "π Aqr".
- Pi_Aquarii wikiPageWikiLinkText "π Aquarii".
- Pi_Aquarii ageMyr "10".
- Pi_Aquarii appmagV "+4.66".
- Pi_Aquarii bV "–0.03".
- Pi_Aquarii class "B1 Ve".
- Pi_Aquarii constell Aquarius_(constellation).
- Pi_Aquarii epoch "J2000".
- Pi_Aquarii luminosity "7302".
- Pi_Aquarii mass "10.7".
- Pi_Aquarii pError "0.28".
- Pi_Aquarii parallax "4.17".
- Pi_Aquarii propMoDec "+2.41".
- Pi_Aquarii propMoRa "+17.83".
- Pi_Aquarii radialV "+4.0".
- Pi_Aquarii radius "6.2".
- Pi_Aquarii rotationalVelocity "215".
- Pi_Aquarii temperature "27094".
- Pi_Aquarii uB "–0.98".
- Pi_Aquarii variable Shell_star.
- Pi_Aquarii wikiPageUsesTemplate Template:Convert.
- Pi_Aquarii wikiPageUsesTemplate Template:DEC.
- Pi_Aquarii wikiPageUsesTemplate Template:Lang-en.
- Pi_Aquarii wikiPageUsesTemplate Template:RA.
- Pi_Aquarii wikiPageUsesTemplate Template:Reflist.
- Pi_Aquarii wikiPageUsesTemplate Template:Starbox_astrometry.
- Pi_Aquarii wikiPageUsesTemplate Template:Starbox_begin.
- Pi_Aquarii wikiPageUsesTemplate Template:Starbox_catalog.
- Pi_Aquarii wikiPageUsesTemplate Template:Starbox_character.
- Pi_Aquarii wikiPageUsesTemplate Template:Starbox_detail.
- Pi_Aquarii wikiPageUsesTemplate Template:Starbox_end.
- Pi_Aquarii wikiPageUsesTemplate Template:Starbox_image.
- Pi_Aquarii wikiPageUsesTemplate Template:Starbox_observe.
- Pi_Aquarii wikiPageUsesTemplate Template:Starbox_sources.
- Pi_Aquarii wikiPageUsesTemplate Template:Stars_of_Aquarius.
- Pi_Aquarii subject Category:Aquarius_(constellation).
- Pi_Aquarii subject Category:B-type_main-sequence_stars.
- Pi_Aquarii subject Category:Bayer_objects.
- Pi_Aquarii subject Category:Emission-line_stars.
- Pi_Aquarii subject Category:Flamsteed_objects.
- Pi_Aquarii subject Category:Henry_Draper_Catalogue_objects.
- Pi_Aquarii subject Category:Shell_stars.
- Pi_Aquarii subject Category:Stars_with_proper_names.
- Pi_Aquarii hypernym Designation.
- Pi_Aquarii type CelestialBody.
- Pi_Aquarii type Place.
- Pi_Aquarii type Star.
- Pi_Aquarii type Catalogue.
- Pi_Aquarii type Variable.
- Pi_Aquarii type Location.
- Pi_Aquarii type Place.