| Observation data EpochJ2000.0 EquinoxJ2000.0 (ICRS) | |
|---|---|
| Constellation | Sculptor[1] |
| Right ascension | 01h 01m 18.27548s[2] |
| Declination | −38° 54′ 59.5033″[2] |
| Apparent magnitude (V) | 5.59[1] |
| Characteristics | |
| Spectral type | K1 III[3] |
| B−Vcolor index | +1.185±0.008[1] |
| Astrometry | |
| Radial velocity (Rv) | −31.1±2.9[4] km/s |
| Proper motion (μ) | RA: +66.892[2]mas/yr Dec.: +49.891[2]mas/yr |
| Parallax (π) | 6.6662±0.0829 mas[2] |
| Distance | 489 ± 6 ly (150 ± 2 pc) |
| Absolute magnitude (MV) | −0.39[1] |
| Details | |
| Mass | 2.9[5] M☉ |
| Radius | 22.29+1.18 −1.74[2] R☉ |
| Luminosity | 198[5] L☉ |
| Surface gravity (log g) | 2.12[5] cgs |
| Temperature | 4,403[5] K |
| Metallicity[Fe/H] | −0.48[6] dex |
| Rotational velocity (v sin i) | <1.0[7] km/s |
| Other designations | |
| ξ Scl,CD−39°260,HD 6055,HIP 4770,HR 288,SAO 192870[8] | |
| Database references | |
| SIMBAD | data |
Xi Sculptoris,Latinized from ξ Sculptoris, is a solitary[9] orange-huedstar in the southernconstellation ofSculptor, near the southern constellation boundary withPhoenix. It is just visible to the naked eye as a dim point of light with anapparent visual magnitude of 5.59.[1] The distance to Xi Sculptoris is approximately 489 light years based onparallax, while it is drifting closer with aradial velocity of −31 km/s.[4] It has an absolute magnitude of −0.39.[1]
This object is an aginggiant star with astellar classification of K1 III,[3] which indicates it has exhausted the supply of hydrogen at itscore then expanded and cooled off themain sequence. At present it has 22[2] times the girth of the Sun. It is radiating 182 times theluminosity of the Sun from its swollenphotosphere at aneffective temperature of 4,489 K.[2]
