Kappa Normae
Star in the constellation Norma
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Kappa Normae, Latinized from κ Normae, is a solitary,[9] yellow hued star in the southern constellation of Norma. Its apparent magnitude is 4.94,[3] which is bright enough to be faintly visible to the naked eye. Based upon an annual parallax shift of 7.44 mas as seen from Earth,[10] the system is located about 440 light years from the Sun. It is drifting closer with a radial velocity of 13.5 km/s.[5]
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Norma[1] |
| Right ascension | 16h 13m 28.72874s[2] |
| Declination | −54° 37′ 49.6860″[2] |
| Apparent magnitude (V) | 4.94[3] |
| Characteristics | |
| Spectral type | G8 III[4] |
| U−B color index | +0.81[3] |
| B−V color index | +1.04[3] |
| Astrometry | |
| Radial velocity (Rv) | −13.5±0.8[5] km/s |
| Proper motion (μ) | RA: −3.845[2] mas/yr Dec.: −22.366[2] mas/yr |
| Parallax (π) | 7.4386±0.2471 mas[2] |
| Distance | 440 ± 10 ly (134 ± 4 pc) |
| Absolute magnitude (MV) | −0.64[1] |
| Details | |
| Mass | 3.6[6] M☉ |
| Radius | 18.4[6] R☉ |
| Luminosity | 190[6] L☉ |
| Surface gravity (log g) | 2.34[6] cgs |
| Temperature | 4,996[6] K |
| Metallicity [Fe/H] | −0.05[6] dex |
| Rotational velocity (v sin i) | 8.3[7] km/s |
| Other designations | |
| κ Nor, CD−54°6604, FK5 600, HD 145397, HIP 79509, HR 6024, SAO 243454, WDS J16135-5438A[8] | |
| Database references | |
| SIMBAD | data |
This is an evolved giant star with a stellar classification of G8III[4] that has swollen and cooled off the main sequence. At present it has 18 times the radius of the Sun. It shines with a luminosity approximately 190 times that of the Sun and has an effective temperature of 4,996 K.[6]