Misplaced Pages

Tau Sculptoris (τ Scl, τ Sculptoris) is a binary star system in the southern constellation of Sculptor, about 8° to the east-southeast of Alpha Sculptoris. It is faintly visible to the naked eye with a combined apparent visual magnitude of +5.69. Based upon an annual parallax shift of 14.42 mas as seen from Earth, it is located around 230 light years from the Sun.

The binary nature of this system was discovered by English astronomer John Herschel in 1835. The current orbital elements are based upon a fraction of a single orbit, as the estimated orbital period is around 1,503 years. The system has a semimajor axis of 3.2 arc seconds and an eccentricity of 0.6. The primary member, component A, is a yellow-white hued F-type main sequence star with an apparent magnitude of +6.06 and a stellar classification of F2 V. The companion, component B, is a magnitude 7.35 star.

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. ^ Johnson, H. L.; et al. (1966), "UBVRIJKL photometry of the bright stars", Communications of the Lunar and Planetary Laboratory, 4 (99): 99, Bibcode:1966CoLPL...4...99J.
3. ^ 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.
4. ^ 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.
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. ^ Cvetkovic, Z.; Novakovic, B. (December 2006), "Orbits For Sixteen Binaries", Serbian Astronomical Journal, 173 (173): 73–82, Bibcode:2006SerAJ.173...73C, doi:10.2298/SAJ0673073C.
7. ^ 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.
8. 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.
9. 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.
10. "tau Scl". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-04-11.{{cite web}}: CS1 maint: postscript (link)
11. O'Meara, Steve (2007), Herschel 400 Observing Guide, Cambridge University Press, p. 302, ISBN 978-0521858939.

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

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