HD 76143
,_II.jpg) HD 76143 compared to the Sun. | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Volans |
| Right ascension | 8h 50m 34.82s[1] |
| Declination | –66° 47′ 34.74″[1] |
| Apparent magnitude (V) | 5.33±0.01[2] |
| Characteristics | |
| Spectral type | F5 IV[3] |
| U−B color index | +0.07[4] |
| B−V color index | +0.42[4] |
| Astrometry | |
| Radial velocity (Rv) | 40.54±0.72[1] km/s |
| Proper motion (μ) | RA: +92.718[1] mas/yr Dec.: +98.946[1] mas/yr |
| Parallax (π) | 18.8133 ± 0.1088 mas[1] |
| Distance | 173 ± 1 ly (53.2 ± 0.3 pc) |
| Absolute magnitude (MV) | +1.76[5] |
| Details | |
| Mass | 1.4+2.9 −1.9[6] M☉ |
| Radius | 3.21+0.17 −0.1[1] R☉ |
| Luminosity | 17±0.1[1] L☉ |
| Surface gravity (log g) | 3.66±0.14[7] cgs |
| Temperature | 6544+107 −164[1] K |
| Metallicity | 115% |
| Metallicity [Fe/H] | +0.06±0.15[5] dex |
| Rotational velocity (v sin i) | 140[8] km/s |
| Age | 2.03[7] Gyr |
| Other designations | |
| Database references | |
| SIMBAD | data |
HD 76143 (HR 3537) is a high proper motion star located in the southern circumpolar constellation Volans. With an apparent magnitude of 5.33,[2] its faintly visible to the naked eye. The star is located 173 light years[1] away from the Solar System, but is drifting with a radial velocity of 40.5 km/s.[1]
Properties
HD 76143 has a classification of "F5 IV",[3] which states its a F-type star that is beginning to evolve off the main sequence. It has 40% more mass than the Sun,[6] but has 3.21[1] times the radius of the latter. It radiates at 17 solar luminosities[1] at an effective temperature of 6,544 K,[1] which gives it a yellowish-white hue. HD 76143 rotates at a high projected rotational velocity of 140 km/s,[8] which gives it an equatorial bulge 10% [8]larger than it's poles. The star has a faint 12 magnitude companion separated 36.7 arcseconds apart.[9]
References
- ^ a b c d e f g h i j k l m n 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.
- ^ a b Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
- ^ a b Kharchenko, N. V. (October 2001). "All-sky compiled catalogue of 2.5 million stars". Kinematika I Fizika Nebesnykh Tel. 17 (5): 409–423. Bibcode:2001KFNT...17..409K. ISSN 0233-7665.
- ^ a b Johnson, H. L.; Mitchell, R. I.; Iriarte, B.; Wisniewski, W. Z. (1966). "UBVRIJKL Photometry of the Bright Stars". Communications of the Lunar and Planetary Laboratory. 4: 99–110.
- ^ a b Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. ISSN 1063-7737. S2CID 119257644.
- ^ a b Stassun, Keivan G.; Oelkers, Ryan J.; Paegert, Martin; Torres, Guillermo; Pepper, Joshua; De Lee, Nathan; Collins, Kevin; Latham, David W.; Muirhead, Philip S.; Chittidi, Jay; Rojas-Ayala, Bárbara (October 2019). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. ISSN 0004-6256. S2CID 166227927.
- ^ a b David, Trevor J.; Hillenbrand, Lynne A. (May 2012). "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. ISSN 0004-637X. S2CID 33401607.
- ^ a b c van Belle, Gerard T. (March 2012). "Interferometric observations of rapidly rotating stars". Astronomy and Astrophysics Review. 20: 51. doi:10.1007/s00159-012-0051-2. ISSN 0935-4956.
- ^ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001-12-01). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466–3471. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. ISSN 0004-6256.
