E Ophiuchi Star in the Ophiuchus constellation e Ophiuchi Observation data Epoch J2000.0      Equinox J2000.0 Constellation Ophiuchus[1][2] Right ascension 17h 18m 37s[1][2] Declination +10° 51′ 52″[1][2] Apparent magnitude (V) 5.03[1][2] Characteristics Spectral type K4II-III[1][2] U−B color index 1.89[1][2] B−V color index 1.55[1][2] R−I color index 0.83[1][2] Astrometry Radial velocity (Rv) 1.89 km/s Proper motion (μ) RA: 40 mas/yr Dec.:  mas/yr Parallax (π) -0.002 mas Other designations e Oph, 66 Her, BD+11 3156, SAO 102725, HD 156681, HR 6433 Database references SIMBAD data e Ophiuchi (HD 156681) is a star in the constellation Ophiuchus[1][2] near the border with Hercules, which it had been mistakenly catalogued 66 Herculis. It has an apparent magnitude of 5.03. References ^ a b c d e f g h i "Pulsating variable Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Archived from the original on 2016-03-16. Retrieved 2012-07-13. ^ a b c d e f g h i "VizieR Detailed Page". Archived from the original on 2016-03-05. Retrieved 2012-07-13. This star-related article is a stub. You can help Wikipedia by expanding it. v t e

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