Astronomy:HD 143436
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Short description: Star in the constellation Serpens
| Observation data Equinox J2000.0]] (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[2] mas |
| Distance | 145.6 ± 0.1 ly (44.64 ± 0.04 pc) |
| Absolute magnitude (MV) | 4.87±0.10[5] |
| Details | |
| Mass | 1.01±0.02[5] M☉ |
| Radius | 1.00±0.08[6] R☉ |
| Luminosity | 1.02±0.03[6] L☉ |
| Surface gravity (log g) | 4.28±0.12[5] cgs |
| Temperature | 5,768±43[5] K |
| Metallicity [Fe/H] | 0.008[5] dex |
| Rotational velocity (v sin i) | < 2.6[5] km/s |
| Age | 3.8±2.9[5] Gyr |
| Other designations | |
| 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
- ↑ Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters 38 (5): 331. doi:10.1134/S1063773712050015. Bibcode: 2012AstL...38..331A XHIP record for this object at VizieR.
- ↑ 2.0 2.1 2.2 2.3 2.4 2.5 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
- ↑ Høg, E. et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics 355: L27. doi:10.1888/0333750888/2862. Bibcode: 2000A&A...355L..27H.
- ↑ Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars". Michigan Spectral Survey 05. Bibcode: 1999MSS...C05....0H.
- ↑ 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 King, Jeremy R. et al. (November 2005). "Keck HIRES Spectroscopy of Four Candidate Solar Twins". The Astronomical Journal 130 (5): 2318–2325. doi:10.1086/452640. Bibcode: 2005AJ....130.2318K.
- ↑ 6.0 6.1 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. doi:10.3847/1538-3881/acd1ec. Bibcode: 2023AJ....165..267H.
- ↑ "HD 143436". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+143436.
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