Xi Sculptoris

Xi Sculptoris
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Sculptor
Right ascension 01h 01m 18.27548s
Declination −38° 54′ 59.5033″
Apparent magnitude (V) 5.59
Characteristics
Spectral type K1 III
B−V color index +1.185±0.008
Astrometry
Radial velocity (Rv)−31.1±2.9 km/s
Proper motion (μ) RA: +66.892 mas/yr
Dec.: +49.891 mas/yr
Parallax (π)6.6662±0.0829 mas
Distance489 ± 6 ly
(150 ± 2 pc)
Absolute magnitude (MV)−0.39
Details
Mass2.9 M☉
Radius22.29+1.18
−1.74 R☉
Luminosity198 L☉
Surface gravity (log g)2.12 cgs
Temperature4,403 K
Metallicity [Fe/H]−0.48 dex
Rotational velocity (v sin i)<1.0 km/s
Other designations
ξ Scl, CD−39°260, HD 6055, HIP 4770, HR 288, SAO 192870
Database references
SIMBADdata

Xi Sculptoris, Latinized from ξ Sculptoris, is a solitary orange-hued star in the southern constellation of Sculptor, near the southern constellation boundary with Phoenix. It is just visible to the naked eye as a dim point of light with an apparent visual magnitude of 5.59. The distance to Xi Sculptoris is approximately 489 light years based on parallax, while it is drifting closer with a radial velocity of −31 km/s. It has an absolute magnitude of −0.39.

This object is an aging giant star with a stellar classification of K1 III, which indicates it has exhausted the supply of hydrogen at its core then expanded and cooled off the main sequence. At present it has 22 times the girth of the Sun. It is radiating 182 times the luminosity of the Sun from its swollen photosphere at an effective temperature of 4,489 K.

References

  1. 1 2 3 4 5 6 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. XHIP record for this object at VizieR.
  2. 1 2 3 4 5 6 7 8 Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  3. 1 2 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. 1 2 de Bruijne, J. H. J.; Eilers, A.-C. (October 2012), "Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project", Astronomy & Astrophysics, 546: 14, arXiv:1208.3048, Bibcode:2012A&A...546A..61D, doi:10.1051/0004-6361/201219219, S2CID 59451347, A61.
  5. 1 2 3 4 Fouesneau, M.; Andrae, R.; Dharmawardena, T.; Rybizki, J.; Bailer-Jones, C. A. L.; Demleitner, M. (2022). "Astrophysical parameters from Gaia DR2, 2MASS, and AllWISE". Astronomy and Astrophysics. 662: A125. arXiv:2201.03252. Bibcode:2022A&A...662A.125F. doi:10.1051/0004-6361/202141828.
  6. ↑ Ye, Xianhao; Wu, Wenbo; Allende Prieto, Carlos; Aguado, David S.; Zhao, Jingkun; González Hernández, Jonay I.; Rebolo, Rafael; Zhao, Gang; Li, Zhuohan; Del Burgo, Carlos; Chen, Yuqin (2025). "Mapping the Milky Way with Gaia Bp/Rp spectra: I. Systematic flux corrections and atmospheric parameters for 68 million stars". Astronomy and Astrophysics. 695. arXiv:2411.19105. Bibcode:2025A&A...695A..75Y. doi:10.1051/0004-6361/202452871.
  7. ↑ De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (2014). "A catalog of rotational and radial velocities for evolved stars. V. Southern stars". Astronomy and Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762.
  8. ↑ "ksi Scl". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-10-08.
  9. ↑ 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.