HD 124448
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Centaurus |
| Right ascension | 14h 14m 58.6293s |
| Declination | −46° 17′ 19.294″ |
| Apparent magnitude (V) | 9.94 - 10.03 |
| Characteristics | |
| Evolutionary stage | B(p) |
| Variable type | PV Tel? |
| Astrometry | |
| Proper motion (μ) | RA: −6.544±0.038 mas/yr Dec.: −0.049±0.032 mas/yr |
| Parallax (π) | 0.6240±0.0312 mas |
| Distance | 5,200 ± 300 ly (1,600 ± 80 pc) |
| Details | |
| Mass | 6.7 M☉ |
| Radius | 5.2 R☉ |
| Luminosity | 1,282 L☉ |
| Surface gravity (log g) | 3.86 cgs |
| Temperature | 15,481 K |
| Metallicity [Fe/H] | −0.55 dex |
| Other designations | |
| V821 Cen, HD 124448, HIP 69619, 2MASS J14145863-4617192 | |
| Database references | |
| SIMBAD | data |
HD 124448, also called Popper's Star and V821 Centauri, is an extreme helium star in the Centaurus constellation. Discovered by astronomer Daniel Popper, this star has a spectral classification of B2-B3 and a radius of 13 R☉.
Peter M. Corben et al. announced that the star is a variable star, in 1972. It was given its variable star designation, V821 Centauri, in 1981.