Beta Sculptoris, Latinized from β Sculptoris, is a single,[11] blue-white hued star in the southern constellation of Sculptor. It has an apparent visual magnitude of 4.37,[2] which is bright enough to be seen with the naked eye. Based upon an annual parallax shift of 18.74 mas as seen from Earth, it is located 174 light years from the Sun.

β Sculptoris

Location of β Sculptoris (circled)
Observation data Epoch J2000      Equinox J2000
Constellation	Sculptor
Right ascension	23h 32m 58.25898s[1]
Declination	−37° 49′ 05.7570″[1]
Apparent magnitude (V)	4.37[2]
Characteristics
Spectral type	B9.5IIIp(HgMnSi)[3]
U−B color index	−0.36[2]
B−V color index	−0.09[2]
Variable type	suspected α2 CVn[4]
Astrometry
Radial velocity (Rv)	+0.4±0.6[5] km/s
Proper motion (μ)	RA: +95.97[1] mas/yr Dec.: +38.29[1] mas/yr
Parallax (π)	18.74 ± 0.15 mas[1]
Distance	174 ± 1 ly (53.4 ± 0.4 pc)
Absolute magnitude (MV)	0.74[6]
Details
Mass	2.98[7] M☉
Radius	2.0[8] R☉
Luminosity	81[7] L☉
Surface gravity (log g)	4.28[8] cgs
Temperature	12,110[7] K
Metallicity [Fe/H]	+0.15[6] dex
Rotation	1.9311[9] d
Rotational velocity (v sin i)	26[7] km/s
Other designations
β Scl, CD−38° 15527, FK5 886, GC 32744, HD 221507, HIP 116231, HR 8937, SAO 214615, GSC 08013-01357[10]
Database references
SIMBAD	data

This is a B-type giant star with a stellar classification of B9.5IIIp(HgMnSi).[3] It belongs to the class of chemically peculiar stars known as a Mercury-Manganese star,[13] showing overabundances of mercury, manganese, and silicon in its spectrum. It is a suspected α² CVn variable with magnitude variation from 4.35 to 4.39.[4] The star has nearly three[7] times the mass of the Sun and double[8] the Sun's radius. It is radiating 81[7] times the Sun's luminosity from its photosphere at an effective temperature of 12,110 K.[7]

References