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- HD_17156 abstract "HD 17156 is a yellow subgiant star approximately 240 light-years away in the constellation of Cassiopeia. The apparent magnitude is 8.17, which means it is not visible to the naked eye but can be seen with good binoculars. A search for a binary companion star using adaptive optics at the MMT Observatory was negative.The star is more massive and larger than our Sun while Its absolute magnitude of 3.70 and spectral type of G0, show that it is both hotter and more luminous. Based on asteroseismic density constraints and stellar isochrones, it was found that the age is 3.37 +0.20−0.47 billion years making it about two thirds as old as the sun. Spectral observations show that the star is metal-rich.An extrasolar planet was discovered with the radial velocity method in 2007, it was subsequently discovered to transit the star. At the time it was the transiting planet with the longest period.".
- HD_17156 wikiPageExternalLink etoile.php?nom=HD+17156.
- HD_17156 wikiPageExternalLink dynamics.
- HD_17156 wikiPageID "11936677".
- HD_17156 wikiPageRevisionID "581212925".
- HD_17156 absmagV "3.7".
- HD_17156 ageGyr "3.37".
- HD_17156 appmag "8.17".
- HD_17156 appmag "8.76".
- HD_17156 appmag1Passband "B".
- HD_17156 appmag2Passband "V".
- HD_17156 appmagV "8.17".
- HD_17156 class "G0V".
- HD_17156 colwidth "30".
- HD_17156 constell Cassiopeia_(constellation).
- HD_17156 eccentricity "0.136".
- HD_17156 eccentricity "0.6768".
- HD_17156 epe "HD+17156".
- HD_17156 epoch "J2000".
- HD_17156 exoplanet HD_17156_b.
- HD_17156 exoplanet HD_17156_c.
- HD_17156 hasPhotoCollection HD_17156.
- HD_17156 mass "0.063".
- HD_17156 mass "1.275".
- HD_17156 mass "3.191".
- HD_17156 metalFe "0.24".
- HD_17156 pError "0.72".
- HD_17156 parallax "13.33".
- HD_17156 period "111.314".
- HD_17156 period "21.2163979".
- HD_17156 propMoDec "-33.14".
- HD_17156 propMoRa "91.14".
- HD_17156 radialV "−3.15 ± 0.20".
- HD_17156 radius "1.5007".
- HD_17156 semimajor "0.16243".
- HD_17156 semimajor "0.481".
- HD_17156 simbad "HD+17156".
- HD_17156 temperature "6079".
- HD_17156 subject Category:Cassiopeia_(constellation).
- HD_17156 subject Category:G-type_subgiants.
- HD_17156 subject Category:Henry_Draper_Catalogue_objects.
- HD_17156 subject Category:Planetary_systems.
- HD_17156 subject Category:Planetary_transit_variables.
- HD_17156 type CelestialBody.
- HD_17156 type Star.
- HD_17156 type PhysicalBody.
- HD_17156 comment "HD 17156 is a yellow subgiant star approximately 240 light-years away in the constellation of Cassiopeia. The apparent magnitude is 8.17, which means it is not visible to the naked eye but can be seen with good binoculars. A search for a binary companion star using adaptive optics at the MMT Observatory was negative.The star is more massive and larger than our Sun while Its absolute magnitude of 3.70 and spectral type of G0, show that it is both hotter and more luminous.".
- HD_17156 label "HD 17156".
- HD_17156 label "HD 17156".
- HD_17156 label "HD 17156".
- HD_17156 label "HD 17156".
- HD_17156 label "HD 17156".
- HD_17156 label "HD 17156".
- HD_17156 label "HD 17156".
- HD_17156 label "HD 17156".
- HD_17156 label "HD 17156".
- HD_17156 label "HD 17156".
- HD_17156 sameAs HD_17156.
- HD_17156 sameAs HD_17156.
- HD_17156 sameAs HD_17156.
- HD_17156 sameAs HD_17156.
- HD_17156 sameAs HD_17156.
- HD_17156 sameAs HD_17156.
- HD_17156 sameAs HD_17156.
- HD_17156 sameAs HD_17156.
- HD_17156 sameAs m.02rysfh.
- HD_17156 sameAs Q1327736.
- HD_17156 sameAs Q1327736.
- HD_17156 wasDerivedFrom HD_17156?oldid=581212925.
- HD_17156 isPrimaryTopicOf HD_17156.
- HD_17156 name "HD 17156".