Beta Sculptoris

β Sculptoris

Template:Location mark Location of β Sculptoris (circled)
Observation data Epoch J2000      Equinox J2000
Constellation	Sculptor
Right ascension	Template:RA
Declination	Template:DEC
Apparent magnitude (V)	4.37
Characteristics
Evolutionary stage	Main sequence
Spectral type	B9.5IIIp(HgMnSi)
U−B Template:Engvar	−0.36
B−V Template:Engvar	−0.09
Variable type	suspected α2 CVn
Astrometry
Radial velocity (Rv)	km/s
Proper motion (μ)	RA: +95.97 mas/yr Dec.: +38.29 mas/yr
Parallax (π)	18.74±0.15 mas
Distance	Template:Rnd ± Template:Rnd ly (Template:Rnd ± Template:Rnd pc)
Absolute magnitude (MV)	0.74
Details
Mass	Template:Solar mass
Radius	2.0 Template:Solar radius
Luminosity	81 Template:Solar luminosity
Surface gravity (log g)	4.13 cgs
Temperature	12,500 K
Metallicity [Fe/H]	+0.23 dex
Rotation	1.9311 d
Rotational velocity (v sin i)	26 km/s
Metallicity [Fe/H]	{{{metal_fe2}}} dex
Other designations
Template:Odlist
Database references
SIMBAD	data

Beta Sculptoris, Latinized from β Sculptoris, is a single, blue-white hued star in the southern constellation of Sculptor. It has an apparent visual magnitude of 4.37, 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.

File:BetaSclLightCurve.png

A light curve for Beta Sculptoris, adapted from Pedersen et al. (2019)

This is a B-type main-sequence star, despite its stellar classification of B9.5IIIp(HgMnSi) containing the luminosity class of a giant. It belongs to the class of chemically peculiar stars known as a Mercury-Manganese star, 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. The star has nearly three times the mass of the Sun and double the Sun's radius. It is radiating 81 times the Sun's luminosity from its photosphere at an effective temperature of 12,110 K.