Lambda Pictoris
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| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Pictor |
| Right ascension | 04h 42m 46.42350s[1] |
| Declination | −50° 28′ 52.8050″[1] |
| Apparent magnitude (V) | +5.29[2] |
| Characteristics | |
| Spectral type | K0/1 III[3] |
| U−B color index | +0.74[2] |
| B−V color index | +0.98[2] |
| Astrometry | |
| Radial velocity (Rv) | +4.60[4] km/s |
| Proper motion (μ) | RA: −36.02[1] mas/yr Dec.: mas/yr |
| Parallax (π) | 8.71±0.18 mas[1] |
| Distance | 374 ± 8 ly (115 ± 2 pc) |
| Details | |
| Mass | 2.20[4] M☉ |
| Luminosity | 112[4] L☉ |
| Surface gravity (log g) | 2.77±0.09[5] cgs |
| Temperature | 4,851±45[4] K |
| Metallicity [Fe/H] | −0.13±0.03[5] dex |
| Age | 2.24[4] Gyr |
| Other designations | |
| λ Pic, CD−50°1471, FK5 2351, HD 30185, HIP 21914, HR 1516, SAO 233638[6] | |
| Database references | |
| SIMBAD | data |
λ Pictoris, Latinised as Lambda Pictoris, is a solitary,[7] orange-hued star in the southern constellation of Pictor. It is visible to the naked eye, having an apparent visual magnitude of +5.29.[2] With an annual parallax shift of 8.71[1] mas as seen from the Earth, it is located around 374 light-years from the Sun. At the estimated age of 2.24[4] billion years old, it is an evolved K-type giant star with a stellar classification of K0/1 III.[3] Lambda Pictoris has 2.2 times the mass of the Sun and is radiating 112 times the Sun's luminosity from its photosphere at an effective temperature of 4,581 K.[4]
References
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- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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