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

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]

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]

References