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