Alpha Sculptoris
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| Observation data Epoch J2000.0 |
|
|---|---|
| Constellation (pronunciation) |
Sculptor |
| Right ascension | 00h 58m 36.4s |
| Declination | -29° 21' 27" |
| Apparent magnitude (V) | +4.30 |
| Distance | 680 ± 120 ly (210 ± 40 pc) |
| Spectral type | B7IIIp |
| Other designations | |
Alpha Sculptoris (α Scl / α Sculptoris) is a star in the constellation Sculptor.
Alpha Sculptoris is a blue-white B-type giant with an apparent magnitude of +4.30. It is approximately 680 light years from Earth. It is classified as an SX Arietis type variable star and its magnitude varies by 0.01.
The luminosity of α Scl is around 1700 times that of the Sun while its surface temperature is 14,000 kelvins. The radius of Alpha Sculptoris is calculated to be 7 times solar while its mass 5.5 times that of our own star. Spectral variations observed in this star where once believed to be caused by an orbiting black hole but are now known to be the result of chemical variations in its atmosphere.
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