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- 74_Aquarii abstract "74 Aquarii is a triple star system in the constellation Aquarius. The combined apparent visual magnitude is 5.8 and it is located at a distance of 700 light-years (210 parsecs) from Earth. It has the variable star designation HI Aquarii.The inner pair of stars form a double-lined spectroscopic binary, where the presence of both components is revealed from the Doppler shift of their spectral lines. They have an orbital period of 3.4298 days. A third component is orbiting the inner pair with an 18 year period at a typical angular separation of 0.078 arcseconds. In 2010, this component was at an angular separation of 0.069 arcseconds along a position angle of 285.9°. This is equivalent to a projected linear separation of 13.9 ± 2.4 AU.".
- 74_Aquarii wikiPageExternalLink AladinPreview?-c=22+53+28.7049-11+36+59.451&ident=V*+HI+Aqr&submit=Aladin+previewer.
- 74_Aquarii wikiPageID "2902756".
- 74_Aquarii wikiPageRevisionID "605624022".
- 74_Aquarii appmagV "5.791".
- 74_Aquarii bV "–0.082".
- 74_Aquarii class "B8IV/V".
- 74_Aquarii constell Aquarius_(constellation).
- 74_Aquarii epoch "J2000".
- 74_Aquarii hasPhotoCollection 74_Aquarii.
- 74_Aquarii pError "0.84".
- 74_Aquarii parallax "4.96".
- 74_Aquarii propMoDec "+1.69".
- 74_Aquarii propMoRa "+20.81".
- 74_Aquarii rotationalVelocity "20".
- 74_Aquarii uB "–0.245".
- 74_Aquarii variable Alpha²_Canum_Venaticorum_variable.
- 74_Aquarii subject Category:Alpha2_Canum_Venaticorum_variables.
- 74_Aquarii subject Category:Aquarius_(constellation).
- 74_Aquarii subject Category:Flamsteed_objects.
- 74_Aquarii subject Category:Henry_Draper_Catalogue_objects.
- 74_Aquarii subject Category:Spectroscopic_binaries.
- 74_Aquarii subject Category:Triple_star_systems.
- 74_Aquarii type CelestialBody.
- 74_Aquarii type Star.
- 74_Aquarii type PhysicalBody.
- 74_Aquarii comment "74 Aquarii is a triple star system in the constellation Aquarius. The combined apparent visual magnitude is 5.8 and it is located at a distance of 700 light-years (210 parsecs) from Earth. It has the variable star designation HI Aquarii.The inner pair of stars form a double-lined spectroscopic binary, where the presence of both components is revealed from the Doppler shift of their spectral lines. They have an orbital period of 3.4298 days.".
- 74_Aquarii label "74 Aquarii".
- 74_Aquarii label "74 Aquarii".
- 74_Aquarii label "天鷹座74".
- 74_Aquarii sameAs 74_Aquarii.
- 74_Aquarii sameAs m.08bd8p.
- 74_Aquarii sameAs Q2607737.
- 74_Aquarii sameAs Q2607737.
- 74_Aquarii wasDerivedFrom 74_Aquarii?oldid=605624022.
- 74_Aquarii isPrimaryTopicOf 74_Aquarii.
- 74_Aquarii name "74 Aquarii".