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- S_Antliae abstract "S Antliae is a W Ursae Majoris-type eclipsing binary variable star in Antlia. It varies in apparent magnitude from 6.27 to 6.83 over a period of 15.6 hours. The system shines with a combined spectrum of A9V. Based upon an annual parallax shift of 11.84 milliarc seconds as measured by the Hipparcos satellite, this system is 270 light-years (84 parsecs) from Earth. Analysing and recalibrating yields a parallax of 13.30 and hence a distance of 250 light-years (76 parsecs). The system is classed as an A-type W Ursae Majoris variable—the primary is hotter than the secondary and the drop in magnitude is caused by the latter passing in front of the former. Calculating the properties of the component stars from the orbital period indicates that the primary star has a mass 1.94 times and a diameter 2.026 times that of the Sun, and the secondary has a mass 0.76 times and a diameter 1.322 times that of the Sun. The primary has a surface temperature of 7800 K, while the secondary is a little cooler at 7340 K. The two stars have similar luminosity and spectral type as they have a common envelope and share stellar material. The system is thought to be around 5-6 billion years old. The two stars will eventually merge to form a single fast-spinning star.Its variability was first recorded in 1888 by H.M. Paul, and at the time it had the shortest known period of any variable star. It was initially thought to be an Algol-type eclipsing binary, but this was discounted by E.C. Pickering on account of it lacking a shallow minimum in its maximum and the width of its minimum period. Alfred H. Joy noted the similarity of its light curve to W Ursae Majoris in 1926, concluding the system was indeed an eclipsing binary with two stars of spectral type A8.".
- S_Antliae wikiPageID "18132932".
- S_Antliae wikiPageLength "5702".
- S_Antliae wikiPageOutDegree "27".
- S_Antliae wikiPageRevisionID "649613774".
- S_Antliae wikiPageWikiLink Alfred_Harrison_Joy.
- S_Antliae wikiPageWikiLink Algol_variable.
- S_Antliae wikiPageWikiLink Antlia.
- S_Antliae wikiPageWikiLink Binary_star.
- S_Antliae wikiPageWikiLink Bright_Star_Catalogue.
- S_Antliae wikiPageWikiLink Category:Antlia_(constellation).
- S_Antliae wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- S_Antliae wikiPageWikiLink Category:Objects_named_with_variable_star_designations.
- S_Antliae wikiPageWikiLink Category:W_Ursae_Majoris_variables.
- S_Antliae wikiPageWikiLink Common_envelope.
- S_Antliae wikiPageWikiLink Durchmusterung.
- S_Antliae wikiPageWikiLink Earth.
- S_Antliae wikiPageWikiLink Edward_Charles_Pickering.
- S_Antliae wikiPageWikiLink Effective_temperature.
- S_Antliae wikiPageWikiLink Henry_Draper_Catalogue.
- S_Antliae wikiPageWikiLink Hipparcos.
- S_Antliae wikiPageWikiLink Luminosity.
- S_Antliae wikiPageWikiLink Minute_and_second_of_arc.
- S_Antliae wikiPageWikiLink Parallax.
- S_Antliae wikiPageWikiLink Smithsonian_Astrophysical_Observatory_Star_Catalog.
- S_Antliae wikiPageWikiLink Stellar_classification.
- S_Antliae wikiPageWikiLink W_Ursae_Majoris.
- S_Antliae wikiPageWikiLink W_Ursae_Majoris_variable.
- S_Antliae wikiPageWikiLinkText "S Ant".
- S_Antliae wikiPageWikiLinkText "S Antliae".
- S_Antliae absmagV "1.963".
- S_Antliae appmagV "6.27".
- S_Antliae bV "0.33".
- S_Antliae class "A9V".
- S_Antliae constell Antlia.
- S_Antliae epoch "J2000".
- S_Antliae luminosity "17".
- S_Antliae mass "1.82".
- S_Antliae pError "0.71".
- S_Antliae parallax "13.3".
- S_Antliae radius "2.23".
- S_Antliae temperature "7900".
- S_Antliae variable Binary_star.
- S_Antliae variable W_Ursae_Majoris_variable.
- S_Antliae wikiPageUsesTemplate Template:Convert.
- S_Antliae wikiPageUsesTemplate Template:DEC.
- S_Antliae wikiPageUsesTemplate Template:RA.
- S_Antliae wikiPageUsesTemplate Template:Reflist.
- S_Antliae wikiPageUsesTemplate Template:Starbox_astrometry.
- S_Antliae wikiPageUsesTemplate Template:Starbox_begin.
- S_Antliae wikiPageUsesTemplate Template:Starbox_catalog.
- S_Antliae wikiPageUsesTemplate Template:Starbox_character.
- S_Antliae wikiPageUsesTemplate Template:Starbox_detail.
- S_Antliae wikiPageUsesTemplate Template:Starbox_end.
- S_Antliae wikiPageUsesTemplate Template:Starbox_observe.
- S_Antliae wikiPageUsesTemplate Template:Starbox_reference.
- S_Antliae wikiPageUsesTemplate Template:Stars_of_Antlia.
- S_Antliae subject Category:Antlia_(constellation).
- S_Antliae subject Category:Henry_Draper_Catalogue_objects.
- S_Antliae subject Category:Objects_named_with_variable_star_designations.
- S_Antliae subject Category:W_Ursae_Majoris_variables.
- S_Antliae type CelestialBody.
- S_Antliae type Place.
- S_Antliae type Star.
- S_Antliae type Catalogue.
- S_Antliae type Variable.
- S_Antliae type Location.
- S_Antliae type Place.
- S_Antliae type Thing.
- S_Antliae comment "S Antliae is a W Ursae Majoris-type eclipsing binary variable star in Antlia. It varies in apparent magnitude from 6.27 to 6.83 over a period of 15.6 hours. The system shines with a combined spectrum of A9V. Based upon an annual parallax shift of 11.84 milliarc seconds as measured by the Hipparcos satellite, this system is 270 light-years (84 parsecs) from Earth. Analysing and recalibrating yields a parallax of 13.30 and hence a distance of 250 light-years (76 parsecs).".
- S_Antliae label "S Antliae".
- S_Antliae sameAs Q2986200.
- S_Antliae sameAs S_Antliae.
- S_Antliae sameAs S_Antliae.
- S_Antliae sameAs S_Antliae.
- S_Antliae sameAs اس_تلمبه.
- S_Antliae sameAs m.04cxk1w.
- S_Antliae sameAs S_Насоса.
- S_Antliae sameAs HD82610.
- S_Antliae sameAs Q2986200.
- S_Antliae sameAs 唧筒座S.
- S_Antliae wasDerivedFrom S_Antliae?oldid=649613774.
- S_Antliae isPrimaryTopicOf S_Antliae.
- S_Antliae name "S Antliae".