Lambda Velorum
Evolved K-type star in the constellation of Vela / From Wikipedia, the free encyclopedia
"Suhail" redirects here. For other uses, see Suhail (disambiguation).
Lambda Velorum (λ Velorum, abbreviated Lambda Vel, λ Vel), officially named Suhail /ˈsuːheɪl/,[10] is a star in the southern constellation of Vela. With a mean apparent visual magnitude of 2.21,[2] 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.[1]
Quick Facts Constellation, Right ascension ...
Observation data Epoch J2000.0 Equinox J2000.0 | |
---|---|
Constellation | Vela |
Right ascension | 09h 07m 59.75787s[1] |
Declination | −43° 25′ 57.3273″[1] |
Apparent magnitude (V) | 2.21[2] (2.14–2.30[3]) |
Characteristics | |
Spectral type | K4 Ib[4] |
U−B color index | +1.80[2] |
B−V color index | +1.65[2] |
Variable type | LC[3] |
Astrometry | |
Radial velocity (Rv) | +18.4[5] km/s |
Proper motion (μ) | RA: −24.01[1] mas/yr Dec.: +13.52[1] mas/yr |
Parallax (π) | 5.99 ± 0.11 mas[1] |
Distance | 545 ± 10 ly (167 ± 3 pc) |
Absolute magnitude (MV) | −3.99[6] |
Details | |
Mass | 7 ± 1[7] M☉ |
Radius | 210[7] R☉ |
Luminosity | 7,900[7] L☉ |
Surface gravity (log g) | 0.6[7] cgs |
Temperature | 3,800–4,000[7] K |
Metallicity [Fe/H] | +0.06[8] dex |
Rotational velocity (v sin i) | 6.7[6] km/s |
Age | 31.6 ± 1.7[9] Myr |
Other designations | |
Database references | |
SIMBAD | data |
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