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- HD_157661 abstract "HD 157661 is the Henry Draper Catalogue designation for a likely triple star in the southern constellation of Ara. With a measured annual parallax of 5.13 mas, is located at a distance of approximately 640 light-years (200 parsecs) from Earth. The combined apparent visual magnitude of the stars is 5.29, which means it is faintly visible to the naked eye.The inner components of this system consist of a pair of B-type main sequence stars. The brighter star has a magnitude of 5.70 and a stellar classification of B7 V. At an angular separation of 2.115 arcseconds is the magnitude 6.46 secondary component, which has a classification of B9.5 V. A third member of the system is a 7.6 magnitude A-type star at a separation of 103 arcseconds.".
- HD_157661 wikiPageExternalLink AladinPreview?-c=SV*+ZI++1312&ident=SV*+ZI++1312&submit=Aladin+previewer.
- HD_157661 wikiPageExternalLink VizieR-S?CCDM%20J17268-4550AB.
- HD_157661 wikiPageExternalLink VizieR-S?HR%206477.
- HD_157661 wikiPageID "18825377".
- HD_157661 wikiPageLength "4761".
- HD_157661 wikiPageOutDegree "23".
- HD_157661 wikiPageRevisionID "601982150".
- HD_157661 wikiPageWikiLink A-type_star.
- HD_157661 wikiPageWikiLink Angular_distance.
- HD_157661 wikiPageWikiLink Angular_separation.
- HD_157661 wikiPageWikiLink Apparent_magnitude.
- HD_157661 wikiPageWikiLink Apparent_visual_magnitude.
- HD_157661 wikiPageWikiLink Ara_(constellation).
- HD_157661 wikiPageWikiLink Arcsecond.
- HD_157661 wikiPageWikiLink B-type_main-sequence_star.
- HD_157661 wikiPageWikiLink B-type_main_sequence_star.
- HD_157661 wikiPageWikiLink Bright_Star_Catalogue.
- HD_157661 wikiPageWikiLink Category:A-type_stars.
- HD_157661 wikiPageWikiLink Category:Ara_(constellation).
- HD_157661 wikiPageWikiLink Category:B-type_main-sequence_stars.
- HD_157661 wikiPageWikiLink Category:HR_objects.
- HD_157661 wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- HD_157661 wikiPageWikiLink Category:Triple_stars.
- HD_157661 wikiPageWikiLink Constellation.
- HD_157661 wikiPageWikiLink Durchmusterung.
- HD_157661 wikiPageWikiLink Henry_Draper_Catalogue.
- HD_157661 wikiPageWikiLink Hipparcos.
- HD_157661 wikiPageWikiLink Hipparcos_Catalogue.
- HD_157661 wikiPageWikiLink Milliarcsecond.
- HD_157661 wikiPageWikiLink Minute_and_second_of_arc.
- HD_157661 wikiPageWikiLink Parallax.
- HD_157661 wikiPageWikiLink Star_system.
- HD_157661 wikiPageWikiLink Stellar_classification.
- HD_157661 wikiPageWikiLink Triple_star.
- HD_157661 wikiPageWikiLinkText "HD 157661".
- HD_157661 appmagV "5.29".
- HD_157661 bV "–0.07".
- HD_157661 class "B7V + B9.5V + A0".
- HD_157661 constell Ara_(constellation).
- HD_157661 epoch "J2000".
- HD_157661 hasPhotoCollection HD_157661.
- HD_157661 pError "0.72".
- HD_157661 parallax "5.13".
- HD_157661 propMoDec "–27.91".
- HD_157661 propMoRa "–6.46".
- HD_157661 rI "–0.03".
- HD_157661 radialV "+8".
- HD_157661 uB "–0.34".
- HD_157661 wikiPageUsesTemplate Template:Convert.
- HD_157661 wikiPageUsesTemplate Template:Reflist.
- HD_157661 wikiPageUsesTemplate Template:Starbox_astrometry.
- HD_157661 wikiPageUsesTemplate Template:Starbox_begin.
- HD_157661 wikiPageUsesTemplate Template:Starbox_catalog.
- HD_157661 wikiPageUsesTemplate Template:Starbox_character.
- HD_157661 wikiPageUsesTemplate Template:Starbox_end.
- HD_157661 wikiPageUsesTemplate Template:Starbox_observe.
- HD_157661 wikiPageUsesTemplate Template:Stars_of_Ara.
- HD_157661 subject Category:A-type_stars.
- HD_157661 subject Category:Ara_(constellation).
- HD_157661 subject Category:B-type_main-sequence_stars.
- HD_157661 subject Category:HR_objects.
- HD_157661 subject Category:Henry_Draper_Catalogue_objects.
- HD_157661 subject Category:Triple_stars.
- HD_157661 hypernym Designation.
- HD_157661 type CelestialBody.
- HD_157661 type Place.
- HD_157661 type Star.
- HD_157661 type Catalogue.
- HD_157661 type Location.
- HD_157661 type Place.
- HD_157661 type Thing.
- HD_157661 comment "HD 157661 is the Henry Draper Catalogue designation for a likely triple star in the southern constellation of Ara. With a measured annual parallax of 5.13 mas, is located at a distance of approximately 640 light-years (200 parsecs) from Earth. The combined apparent visual magnitude of the stars is 5.29, which means it is faintly visible to the naked eye.The inner components of this system consist of a pair of B-type main sequence stars.".
- HD_157661 label "HD 157661".
- HD_157661 sameAs اچ_۴۹۴۹.
- HD_157661 sameAs HD_157661.
- HD_157661 sameAs m.04gh7bs.
- HD_157661 sameAs Q3304623.
- HD_157661 sameAs Q3304623.
- HD_157661 sameAs HD_157661.
- HD_157661 wasDerivedFrom HD_157661?oldid=601982150.
- HD_157661 isPrimaryTopicOf HD_157661.
- HD_157661 name "HD 157661".