| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Lupus |
| Right ascension | 15h11m 57.67549s[1] |
| Declination | −48° 44′ 37.3397″[1] |
| Apparent magnitude (V) | 5.70[2] |
| Characteristics | |
| Spectral type | A3/5V[3] or A3IV[4] |
| B−V color index | +0.144±0.008[2] |
| Astrometry | |
| Radial velocity (Rv) | +0.0±3.7[5] km/s |
| Proper motion (μ) | RA: −98.451[1] mas/yr Dec.: −43.845[1] mas/yr |
| Parallax (π) | 18.0050 ± 0.1136 mas[1] |
| Distance | 181 ± 1 ly (55.5 ± 0.4 pc) |
| Details | |
| Metallicity [Fe/H] | −0.01[6] dex |
| Rotational velocity (v sin i) | 160.4±1.0[7] km/s |
| Other designations | |
κ2 Lup, BD−48°9705, HD 134482, HIP 74380, HR 5647, SAO 225526[8] | |
| Database references | |
| SIMBAD | data |
κ2 Lupi, LatinizedasKappa2 Lupi, is a white-hued star in the southern constellationofLupus, and forms a double star with Kappa1 Lupi.[9] It is visible to the naked eye as a dim point of light with an apparent visual magnitude is 5.64. This star is located around 181 light years distant from the Sun. It is an A-type main-sequence star with a stellar classification of A3/5V.[3] However, Levato (1973) classed the star as A3IV, which would suggest it is already evolving off the main sequence.[4] The star has a high rotation rate, showing a projected rotational velocity of 160 km/s.[7]
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