Lambda Pictoris

Lambda Pictoris
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]
Distance374 ± 8 ly
(115 ± 2 pc)
Details
Mass2.20[4] M☉
Luminosity112[4] L☉
Surface gravity (log g)2.77±0.09[5] cgs
Temperature4,851±45[4] K
Metallicity [Fe/H]−0.13±0.03[5] dex
Age2.24[4] Gyr
Other designations
λ Pic, CD−50° 1471, FK5 2351, HD 30185, HIP 21914, HR 1516, SAO 233638[6]
Database references
SIMBADdata

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]

  1. ^ a b c d e Cite error: The named reference vanLeeuwen2007 was invoked but never defined (see the help page).
  2. ^ a b c d Cite error: The named reference Cousins1969 was invoked but never defined (see the help page).
  3. ^ a b Cite error: The named reference houk1978 was invoked but never defined (see the help page).
  4. ^ a b c d e f g Cite error: The named reference Luck2015 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Alves2015 was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference SIMBAD was invoked but never defined (see the help page).
  7. ^ Cite error: The named reference Eggleton2008 was invoked but never defined (see the help page).