Lambda Pictoris
In today's world, Lambda Pictoris is a topic that has sparked great interest and debate in society. With the advancement of technology and globalization, Lambda Pictoris has become a key element that permeates various spheres of daily life. From politics to popular culture, Lambda Pictoris has left an indelible mark on the modern world. In this article, we will explore the different aspects of Lambda Pictoris and how it has impacted the lives of people around the world. From its influence on the economy to its impact on the environment, Lambda Pictoris is a topic that deserves to be analyzed and discussed in depth.
| 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 | −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
- ^ a b c d e van Leeuwen, F. (2007), "Validation of the new Hipparcos reduction", Astronomy and Astrophysics, 474 (2): 653–664, arXiv:0708.1752, Bibcode:2007A&A...474..653V, doi:10.1051/0004-6361:20078357, S2CID 18759600.
- ^ a b c d Cousins, A. W. J.; et al. (1969), "Comparison Stars for Long Period Variables", Monthly Notes of the Astronomical Society of Southern Africa, 28: 63, Bibcode:1969MNSSA..28...63C.
- ^ a b Houk, Nancy (1978), "Michigan catalogue of two-dimensional spectral types for the HD stars", Ann Arbor: Dept. Of Astronomy, 2, Ann Arbor: Dept. of Astronomy, University of Michigan, Bibcode:1978mcts.book.....H.
- ^ a b c d e f g Luck, R. Earle (2015), "Abundances in the Local Region. I. G and K Giants", Astronomical Journal, 150 (3): 88, arXiv:1507.01466, Bibcode:2015AJ....150...88L, doi:10.1088/0004-6256/150/3/88, S2CID 118505114.
- ^ a b Alves, S.; et al. (April 2015), "Determination of the spectroscopic stellar parameters for 257 field giant stars", Monthly Notices of the Royal Astronomical Society, 448 (3): 2749–2765, arXiv:1503.02556, Bibcode:2015MNRAS.448.2749A, doi:10.1093/mnras/stv189.
- ^ "lam Pic". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-21.
{{cite web}}: CS1 maint: postscript (link) - ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
