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- HD_171978 abstract "The star HD 171978 is a spectroscopic binary in the constellation of Serpens. It consists of two A-type main sequence stars orbiting each other with a period of approximately 14.7 days. The overall apparent visual magnitude of the system varies between 5.74 and 5.86.".
- HD_171978 wikiPageID "4665091".
- HD_171978 wikiPageRevisionID "560780661".
- HD_171978 absmagV "−0.7".
- HD_171978 appmagV "5.74".
- HD_171978 bV "+0.07".
- HD_171978 class "A1V / A1V".
- HD_171978 constell Serpens.
- HD_171978 epoch Epoch_(astronomy).
- HD_171978 equinox "J2000.0".
- HD_171978 pError "0.93".
- HD_171978 parallax "5.06".
- HD_171978 propMoDec "−19.83".
- HD_171978 propMoRa "11.74".
- HD_171978 rI "+0.04".
- HD_171978 radialV "11.4".
- HD_171978 uB "+0.06".
- HD_171978 subject Category:A-type_main-sequence_stars.
- HD_171978 subject Category:Bayer_objects.
- HD_171978 subject Category:Henry_Draper_Catalogue_objects.
- HD_171978 subject Category:Hipparcos_objects.
- HD_171978 subject Category:Serpens_(constellation).
- HD_171978 subject Category:Spectroscopic_binaries.
- HD_171978 type CelestialBody.
- HD_171978 type Star.
- HD_171978 type PhysicalBody.
- HD_171978 comment "The star HD 171978 is a spectroscopic binary in the constellation of Serpens. It consists of two A-type main sequence stars orbiting each other with a period of approximately 14.7 days. The overall apparent visual magnitude of the system varies between 5.74 and 5.86.".
- HD_171978 label "HD 171978".
- HD_171978 label "HD 171978".
- HD_171978 label "HD 171978".
- HD_171978 sameAs HD_171978.
- HD_171978 sameAs m.04n7lcg.
- HD_171978 sameAs Q5178072.
- HD_171978 sameAs Q5178072.
- HD_171978 wasDerivedFrom HD_171978?oldid=560780661.
- HD_171978 isPrimaryTopicOf HD_171978.
- HD_171978 name "HD 171978".