Gamma Sculptoris

Gamma Sculptoris, Latinized from γ Sculptoris, is a single,[11] orange-hued star in the constellation Sculptor. Based upon an annual parallax shift of 17.90 mas as seen from Earth,[1] this star is located about 182 light years from the Sun. It is bright enough to be visible to the naked eye with an apparent visual magnitude of 4.41.[2] It is moving away from the Sun with a radial velocity of +15.6 km/s.[5]

γ Sculptoris

Location of γ Sculptoris (circled)
Observation data Epoch J2000      Equinox J2000
Constellation	Sculptor
Right ascension	23h 18m 49.44076s[1]
Declination	−32° 31′ 55.2890″[1]
Apparent magnitude (V)	4.41[2]
Characteristics
Spectral type	K1 III[3]
U−B color index	+1.06[4]
B−V color index	+1.13[4]
Astrometry
Radial velocity (Rv)	+15.60[5] km/s
Proper motion (μ)	RA: +20.13[1] mas/yr Dec.: −77.72[1] mas/yr
Parallax (π)	17.90 ± 0.19 mas[1]
Distance	182 ± 2 ly (55.9 ± 0.6 pc)
Absolute magnitude (MV)	0.67[2]
Details
Mass	1.60[6] M☉
Radius	12[7] R☉
Luminosity	72.41[2] L☉
Surface gravity (log g)	2.45[6] cgs
Temperature	4,578±24[8] K
Metallicity [Fe/H]	−0.06[6] dex
Rotational velocity (v sin i)	1.7[9] km/s
Age	2.47[8] Gyr
Other designations
γ Scl, CD−33° 16476, FK5 879, GC 32450, GJ 9821, HD 219784, HIP 115102, HR 8863, SAO 214444, GSC 07510-01089[10]
Database references
SIMBAD	data

This is an evolved K-type giant star with a stellar classification of K1 III.[3] At the age of 2.47[8] billion years it is a red clump star on the horizontal branch,[6] which means it is generating energy through helium fusion at its core. The star has 1.60[6] times the mass of the Sun and it has expanded to 12[7] times the Sun's radius. It is radiating 72[2] times the Sun's luminosity from its enlarged photosphere at an effective temperature of 4,578 K[8]