HD 143436

HD 143436
Observation data
Epoch J2000      Equinox ICRS
Constellation Serpens[1]
Right ascension 16h 00m 18.83721s[2]
Declination +00° 08′ 13.2302″[2]
Apparent magnitude (V) 8.03[3]
Characteristics
Evolutionary stage main sequence[2]
Spectral type G3V[4]
B−V color index 0.644[5]
Astrometry
Radial velocity (Rv)−24.7±0.7[5] km/s
Proper motion (μ) RA: −136.573[2] mas/yr
Dec.: −108.764[2] mas/yr
Parallax (π)22.3995±0.0207 mas[2]
Distance145.6 ± 0.1 ly
(44.64 ± 0.04 pc)
Absolute magnitude (MV)4.87±0.10[5]
Details
Mass1.01±0.02[5] M☉
Radius1.00±0.08[6] R☉
Luminosity1.02±0.03[6] L☉
Surface gravity (log g)4.28±0.12[5] cgs
Temperature5,768±43[5] K
Metallicity [Fe/H]0.008[5] dex
Rotational velocity (v sin i)< 2.6[5] km/s
Age3.8±2.9[5] Gyr
Other designations
BD+00°3441, HIP 78399, SAO 121307, PPM 162138, LTT 14757, NLTT 41715[7]
Database references
SIMBADdata

HD 143436 also known as HIP 78399, is a G-type star in the constellation Serpens. The temperature, rotation, mass, and abundance of elements in this star are close to properties of the Sun, and for this reason it is a solar twin candidate. The only notable difference is an approximately six times higher abundance of lithium compared to the Sun and most likely a younger age of 3.8 Gyr. The space velocity components of this star are (U, V, W) = (−19.2, −38.6, −7.0) km/s.[5]

References

  1. ↑ 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 Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  3. ↑ Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27. Bibcode:2000A&A...355L..27H. doi:10.1888/0333750888/2862.
  4. ↑ Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars". Michigan Spectral Survey. 05. Bibcode:1999MSS...C05....0H.
  5. 1 2 3 4 5 6 7 8 9 10 King, Jeremy R.; et al. (November 2005). "Keck HIRES Spectroscopy of Four Candidate Solar Twins". The Astronomical Journal. 130 (5): 2318–2325. arXiv:astro-ph/0508004. Bibcode:2005AJ....130.2318K. doi:10.1086/452640. S2CID 6535115.
  6. 1 2 Hardegree-Ullman, Kevin K.; Apai, Dániel; Bergsten, Galen J.; Pascucci, Ilaria; López-Morales, Mercedes (2023). "Bioverse: A Comprehensive Assessment of the Capabilities of Extremely Large Telescopes to Probe Earth-like O2 Levels in Nearby Transiting Habitable-zone Exoplanets". The Astronomical Journal. 165 (6): 267. arXiv:2304.12490. Bibcode:2023AJ....165..267H. doi:10.3847/1538-3881/acd1ec.
  7. ↑ "HD 143436". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-12-05.
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