HD 143436

Last updated
HD 143436
Observation data
Epoch J2000       Equinox J2000
Constellation Serpens [1]
Right ascension 16h 00m 18.83726s [2]
Declination +00° 08′ 13.2306″ [2]
Apparent magnitude  (V)8.03 [3]
Characteristics
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: −136.615 [2] mas/yr
Dec.: −108.779 [2] mas/yr
Parallax (π)22.3164±0.0456  mas [2]
Distance 146.2 ± 0.3  ly
(44.81 ± 0.09  pc)
Absolute magnitude  (MV)4.87±0.10 [5]
Details [5]
Mass 1.01±0.02  M☉
Radius 1.01+0.01
−0.04 [2]   R☉
Luminosity 1.047±0.003 [2]   L☉
Surface gravity (log g)4.28±0.12  cgs
Temperature 5,768±43  K
Metallicity [Fe/H]0.008  dex
Rotational velocity (v sin i)< 2.6 km/s
Age 3.8±2.9  Gyr
Other designations
BD+00°3441, HIP 78399, SAO 121307, PPM 162138, LTT 14757, NLTT 41715 [6]
Database references
SIMBAD data

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.
  2. 1 2 3 4 5 6 7 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. ↑ 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 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. ↑ "HD 143436". SIMBAD . Centre de données astronomiques de Strasbourg . Retrieved 2020-12-05.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.