| Observation data EpochJ2000.0 EquinoxJ2000.0 (ICRS) | |
|---|---|
| Constellation | Norma |
| Right ascension | 16h 13m 28.72874s[1] |
| Declination | −54° 37′ 49.6860″[1] |
| Apparent magnitude (V) | 4.94[2] |
| Characteristics | |
| Spectral type | G8 III[3] |
| U−Bcolor index | +0.81[2] |
| B−Vcolor index | +1.04[2] |
| Astrometry | |
| Radial velocity (Rv) | −13.5±0.8[4] km/s |
| Proper motion (μ) | RA: −3.845[1]mas/yr Dec.: −22.366[1]mas/yr |
| Parallax (π) | 7.4386±0.2471 mas[1] |
| Distance | 440 ± 10 ly (134 ± 4 pc) |
| Absolute magnitude (MV) | −0.64[5] |
| Details | |
| Radius | 21.8+0.6 −1.5[1] R☉ |
| Luminosity | 225.7±8.5[1] L☉ |
| Temperature | 4,787+173 −69[1] K |
| Other designations | |
| κ Nor,CD−54° 6604,FK5 600,HD 145397,HIP 79509,HR 6024,SAO 243454,WDS J16135-5438A[6] | |
| Database references | |
| SIMBAD | data |
Kappa Normae,Latinized fromκ Normae, is a solitary,[7] yellow huedstar in the southernconstellation ofNorma. Itsapparent magnitude is 4.94,[2] which is bright enough to be faintly visible to the naked eye. Based upon an annualparallax shift of7.44 mas as seen from Earth,[8] the system is located about 440 light years from theSun. It is drifting closer with aradial velocity of 13.5 km/s.[4]
This is anevolvedgiant star with astellar classification of G8III[3] that has swollen and cooled off themain sequence. At present it has 22[1] times theradius of the Sun. It shines with aluminosity approximately 226 times that of the Sun and has aneffective temperature of 4,787 K.[1]
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