Lambda Velorum
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Vela |
| Right ascension | 09h 07m 59.75787s |
| Declination | −43° 25′ 57.3273″ |
| Apparent magnitude (V) | 2.21 (2.14–2.30) |
| Characteristics | |
| Spectral type | K4 Ib |
| U−B color index | +1.80 |
| B−V color index | +1.65 |
| Variable type | LC |
| Astrometry | |
| Radial velocity (Rv) | +18.4 km/s |
| Proper motion (μ) | RA: −24.01 mas/yr Dec.: +13.52 mas/yr |
| Parallax (π) | 5.99±0.11 mas |
| Distance | 545 ± 10 ly (167 ± 3 pc) |
| Absolute magnitude (MV) | −3.99 |
| Details | |
| Mass | 7.0+1.5 −1.1 M☉ |
| Radius | 211±6 R☉ |
| Luminosity | 8,300 L☉ |
| Surface gravity (log g) | 0.64 cgs |
| Temperature | 3,835±100 K |
| Metallicity [Fe/H] | +0.06 dex |
| Rotational velocity (v sin i) | 5.6±1.0 km/s |
| Age | 31.6 ± 1.7 Myr |
| Other designations | |
| Alsuhail, Al Suhail al Wazn, Suhail, Al' Sukhal', CD−42°4990, FK5 345, HD 78647, HIP 44816, HR 3634, SAO 220878 | |
| Database references | |
| SIMBAD | data |
Lambda Velorum (λ Velorum, abbreviated Lambda Vel, λ Vel), officially named Suhail /ˈsuːheɪl/, is a star in the southern constellation of Vela. With a mean apparent visual magnitude of 2.21, this is the third-brightest star in the constellation and one of the brighter stars in the sky. The distance to this star can be measured directly using the parallax technique, yielding an estimated 545 light-years (167 parsecs) from the Sun.