Observation data Epoch J2000 Equinox J2000 |
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Constellation | Ophiuchus |
Right ascension | 16h 57m 40.10s [1] |
Declination | +09° 22′ 30.1″ [1] |
Apparent magnitude (V) | 3.19 |
Characteristics | |
Spectral type | A2III |
Astrometry | |
Proper motion (μ) | RA: -292.13 ± 0.17 [1] mas/yr Dec.: -10.38 ± 0.12 [1] mas/yr |
Parallax (π) | 35.66 ± 0.20[1] mas |
Distance | 91.5 ± 0.5 ly (28 ± 0.2 pc) |
Absolute magnitude (MV) | 1.09 |
Details | |
Mass | 1.19 ± 0.14 [2] M☉ |
Other designations | |
Kappa Ophiuchi (κ Oph, κ Ophiuchi) is a Class A2, third-magnitude star in the constellation Ophiuchus. Kappa Ophiuchi is a variable star located about 92 light-years (28 pc) from Earth.[1]
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