Misplaced Pages

Kappa Sculptoris is a binary star system in the southern constellation of Sculptor. It is faintly visible to the naked eye, with a combined apparent visual magnitude of +5.51. Based upon an annual parallax shift of 12.91 mas as measured from Earth, it is located roughly 250 light years from the Sun.

The pair orbit each other with an estimated period of 616 years, a semimajor axis of 1.5 arc seconds, and an eccentricity of 0.1. Both components are evolved, yellow-white hued, F-type giant stars. The primary, component A, has a visual magnitude of 6.23 and a stellar classification of F4 III. The companion, component B, is magnitude 6.29 and of class F3 III. Their composite spectrum is classified as F2V. The mass ratio is 0.782, meaning the secondary is only 78.2% as massive as the primary. An 18th magnitude companion star lies 73.4 arc seconds distant along a position angle of 243°, as of 1998.

References

1. ^ 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. ^ 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.
3. ^ 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. ^ Hurly, P. R. (1975), "Combined-light UBV Photometry of 103 Bright Southern Visual Doubles", Monthly Notes of the Astronomical Society of Southern Africa, 34: 7, Bibcode:1975MNSSA..34....7H.
5. 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.
6. ^ Ammler-von Eiff, Matthias; Reiners, Ansgar (June 2012), "New measurements of rotation and differential rotation in A-F stars: are there two populations of differentially rotating stars?", Astronomy & Astrophysics, 542: A116, arXiv:1204.2459, Bibcode:2012A&A...542A.116A, doi:10.1051/0004-6361/201118724, S2CID 53666672.
7. ^ Hartkopf, W. I.; et al., Sixth Catalog of Orbits of Visual Binary Stars, United States Naval Observatory, archived from the original on 2011-05-17, retrieved 2017-06-02
8. ^ David, Trevor J.; Hillenbrand, Lynne A. (2015), "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets", The Astrophysical Journal, 804 (2): 146, arXiv:1501.03154, Bibcode:2015ApJ...804..146D, doi:10.1088/0004-637X/804/2/146, S2CID 33401607.
9. McDonald, I.; et al. (2012), "Fundamental Parameters and Infrared Excesses of Hipparcos Stars", Monthly Notices of the Royal Astronomical Society, 427 (1): 343–57, arXiv:1208.2037, Bibcode:2012MNRAS.427..343M, doi:10.1111/j.1365-2966.2012.21873.x, S2CID 118665352.
10. Casagrande, L.; et al. (2011), "New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey", Astronomy & Astrophysics, 530 (A138): 21, arXiv:1103.4651, Bibcode:2011A&A...530A.138C, doi:10.1051/0004-6361/201016276, S2CID 56118016.
11. "kap01 Scl -- Double or multiple star", SIMBAD Astronomical Database, Centre de Données astronomiques de Strasbourg, retrieved 2017-06-01.
12. Makarov, Valeri V.; Fabricius, Claus (2021). "Astrometric Mass Ratios of 248 Long-period Binary Stars Resolved in Hipparcos and Gaia EDR3". The Astronomical Journal. 162 (6): 260. arXiv:2109.11951. Bibcode:2021AJ....162..260M. doi:10.3847/1538-3881/ac2ee0. S2CID 237635330.
13. Mason, B. D.; et al. (2014), "The Washington Visual Double Star Catalog", The Astronomical Journal, 122 (6): 3466, Bibcode:2001AJ....122.3466M, doi:10.1086/323920, retrieved 2015-07-22

v t e Constellation of Sculptor
List of stars in Sculptor Sculptor in Chinese astronomy
Stars	Bayer α β γ δ ε ζ η θ ι κ κ λ λ μ ξ π σ τ Variable R BW HD 4113 4208 (Cocibolca) 9578 Other Gliese 1 Gliese 42 HE 2359-2844 LTT 9779 TOI-178 WASP-8 WASP-45 WD 0137−349
Exoplanets HD 4113 b HD 4208 b TOI-178c WASP-8b
Star clusters Blanco 1 NGC 288
Galaxies	NGC 7 10 24 55 101 115 131 134 148 150 174 254 264 289 300 314 334 365 378 409 415 418 423 424 427 438 439 441 461 491 526 527 544 549 612 613 626 630 7793 7812 Other 2MASX J00482185−2507365 occulting pair A2744 YD4 Abell 2744 Y1 Cartwheel Galaxy Comet Galaxy ESO 540-030 H2356-309 Haro 11 IC 5332 Sculptor Galaxy Sculptor Dwarf Galaxy Sculptor Dwarf Irregular Galaxy UNCOVER-z12 UNCOVER-z13
Galaxy clusters Abell 2667 Abell 2744
Astronomical events SN 2009gj
Category

• Binary stars
• F-type giants
• Sculptor (constellation)
• Bayer objects
• Durchmusterung objects
• Henry Draper Catalogue objects
• Hipparcos objects
• Bright Star Catalogue objects