Alpha Sculptoris
  | |
| Observation data J2000.0
| |
|---|---|
| Constellation | Sculptor |
| Right ascension | 00h 58m 36.35930s[1] |
| Declination | −29° 21′ 26.8247″[1] |
| Apparent magnitude (V) | +4.30[2] |
| Characteristics | |
| Spectral type | B7 IIIp[3] |
| U−B color index | −0.515[4] |
| B−V color index | −0.155[4] |
| Variable type | SX Ari[5] |
| Absolute magnitude (MV) | −2.58[6] |
| Details | |
Myr | |
| Database references | |
| SIMBAD | data |
Alpha Sculptoris,
apparent visual magnitude of +4.30,[2] which makes it the brightest star in this generally faint constellation. Parallax measurements collected during the Hipparcos mission provide a distance estimate for this star, placing it at roughly 780 light-years (240 parsecs), with a 4% margin of error.[1]
Alpha Sculptoris is a
B-type giant star. It is classified as an SX Arietis type variable star and its magnitude varies by less than a tenth of a magnitude.[5]
The luminosity of α Scl is around 1,500 times that of the Sun while its surface temperature is 13,600 K. The radius of Alpha Sculptoris is calculated to be seven times solar while its mass is five times that of the Sun.
References
- ^ S2CID 18759600.
- ^ Bibcode:1999VeARI..35....1W.
- Bibcode:1982mcts.book.....H.
- ^ Bibcode:1966PDAUC...1....1G.
- ^ Bibcode:2009yCat....102025S.
- S2CID 119257644.
- ^ S2CID 18596834.
- .
- ^ S2CID 119261402.
- Bibcode:1973A&AS....9..427S.
- ^ "alf Scl". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2012-04-08.
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