53 Ophiuchi

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53 Ophiuchi
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Ophiuchus
Right ascension 17h 34m 36.69409s [1]
Declination +09° 35′ 12.1201″ [1]

53 Ophiuchi is a double star in the constellation Ophiuchus. Its apparent magnitude is 5.23. Located around 104 parsecs (340 ly) distant, the primary is a blue-white main-sequence star of spectral type A2V,[1] while the secondary, with an apparent magnitude of 7.76, is a subgiant of spectral type A8IV.[1]


  1. ^ a b c d "f Ophiuchi". SIMBAD Astronomical Database. Centre de Données astronomiques de Strasbourg. Retrieved 13 January 2014.