Xi Sculptoris

Xi Sculptoris, Latinized from ξ Sculptoris, is a solitary^[9] orange-hued star in the southern constellation of Sculptor, near the southern constellation boundary with Phoenix. It is just visible to the naked eye as a dim point of light with an apparent visual magnitude of 5.59.^[1] The distance to Xi Sculptoris is approximately 489 light years based on parallax, while it is drifting closer with a radial velocity of −31 km/s.^[4] It has an absolute magnitude of −0.39.^[1]

Xi Sculptoris

Observation data Epoch J2000.0      Equinox J2000.0 (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−V color 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

This object is an aging giant star with a stellar classification of K1 III,^[3] which indicates it has exhausted the supply of hydrogen at its core then expanded and cooled off the main sequence. At present it has 22^[2] times the girth of the Sun. It is radiating 182 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,489 K.^[2]