Lambda2 Sculptoris

Nowadays, Lambda2 Sculptoris is a topic that is at the center of attention and debate in different areas. Its implications and repercussions are of great importance, which is why it is essential to analyze it from various perspectives. In this article, we will explore different aspects related to Lambda2 Sculptoris, examining its impact on society, its evolution over time and possible solutions or approaches that can be considered. This topic is of general interest and its relevance cannot be ignored, so it is crucial to understand it comprehensively to make informed decisions and foster a constructive dialogue about it.

For other star systems with this Bayer designation, see λ Sculptoris.
Lambda2 Sculptoris
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Sculptor
Right ascension 00h 44m 12.09871s[1]
Declination −38° 25′ 18.0704″[1]
Apparent magnitude (V) +5.90[2]
Characteristics
Spectral type K1 III[3]
B−V color index +1.15[2]
Astrometry
Radial velocity (Rv)+26.5[4] km/s
Proper motion (μ) RA: +246.29[1] mas/yr
Dec.: +120.53[1] mas/yr
Parallax (π)9.63±0.40 mas[1]
Distance340 ± 10 ly
(104 ± 4 pc)
Absolute magnitude (MV)+0.82[5]
Details
Mass1.49[4] M☉
Radius14[6] R☉
Luminosity63[4] L☉
Temperature4,531±25[4] K
Metallicity −0.04±0.05[5] dex
Age3.58[4] Gyr
Other designations
λ2 Scl, CD−39° 181, FK5 26, HD 4211, HIP 3456, HR 195, SAO 192703[7]
Database references
SIMBADdata

Lambda2 Sculptoris is an orange-hued star in the southern constellation of Sculptor. On dark nights it is faintly visible to the naked eye, having an apparent visual magnitude of +5.90.[2] Based upon an annual parallax shift of 9.63 mas as measured from Earth,[1] it is located roughly 340 light-years from the Sun. It has a relatively large proper motion, advancing 0.284±0.015 arcsecond per year across the sky.[8]

At an age of about 3.58[4] billion years, Lambda2 Sculptoris is an evolved red-clump[9] giant star with a stellar classification of K0 III.[3] It is presently on the horizontal branch and is generating energy through the nuclear fusion of helium at its core. The star has an estimated 1.49[4] times the mass of the Sun and has expanded to about 14[6] times the Sun's radius. It is radiating 63[4] times the solar luminosity from its photosphere at an effective temperature of 4,531 K.[4]

References

  1. ^ a b c d e f 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.
  2. ^ a b c Evans, D. S. (1966), "Fundamental data for Southern stars (6th list).", Royal Observatory Bulletin, 110: 185, Bibcode:1966RGOB..110..185E.
  3. ^ a b Houk, Nancy (1979), Michigan catalogue of two-dimensional spectral types for the HD stars, vol. 3, Ann Arbor, Michigan: Dept. of Astronomy, University of Michigan, Bibcode:1982mcts.book.....H.
  4. ^ a b c d e f g h i 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.
  5. ^ a b Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015, S2CID 119257644.
  6. ^ a b Pasinetti Fracassini, L. E.; et al. (February 2001), "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS)", Astronomy and Astrophysics, 367 (3rd ed.): 521–24, arXiv:astro-ph/0012289, Bibcode:2001A&A...367..521P, doi:10.1051/0004-6361:20000451, S2CID 425754.
  7. ^ "lam02 Scl". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-06-01.{{cite web}}: CS1 maint: postscript (link)
  8. ^ Wroblewski, H.; Costa, E. (February 2001), "High proper motion stars with declinations between -30° and -40°, and right ascensions between 00 h and 10 h 40 m" (PDF), Astronomy and Astrophysics, 367: 725–728, Bibcode:2001A&A...367..725W, doi:10.1051/0004-6361:20000062.
  9. ^ Liu, Y. J.; et al. (2007), "The abundances of nearby red clump giants", Monthly Notices of the Royal Astronomical Society, 382 (2): 553–66, Bibcode:2007MNRAS.382..553L, doi:10.1111/j.1365-2966.2007.11852.x.