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TOI-813

From Wikipedia, the free encyclopedia
G-type star
TOI-813
Observation data
EpochJ2000      EquinoxJ2000
ConstellationDorado[1]
Right ascension04h 50m 46.57013s[2]
Declination−60° 54′ 19.6171″[2]
Apparent magnitude (V)10.322[3]
Characteristics
Evolutionary stageSubgiant
Spectral typeG0IV[3]
Astrometry
Radial velocity (Rv)1.24±0.30[2] km/s
Proper motion (μ)RA: -3.605mas/yr[2]
Dec.: -2.699mas/yr[2]
Parallax (π)3.8031±0.0141 mas[2]
Distance858 ± 3 ly
(262.9 ± 1.0 pc)
Details[3]
Mass1.32±0.06 M
Radius1.94±0.10 R
Surface gravity (log g)3.86±0.14 cgs
Temperature5907±150 K
Metallicity[Fe/H]0.10±0.10 dex
Rotational velocity (v sin i)8.2±0.9 km/s
Age3.73±0.62 Gyr
Other designations
CD−61 970,CPD−61 371,PPM 354364,TOI-813,TIC 55525572,TYC 8876-1059-1,2MASS J04504658-6054196[4]
Database references
SIMBADdata

TOI-813 (also known as TIC 55525572[5] and 2MASS J04504658-6054196) is a bright subgiantG-type star[6] located 858light-years (263parsecs) away fromplanetEarth. It is too faint to be seen with thenaked eye. TOI-813 has a mass of 1.32solar masses, a radius of 1.95solar radii and a luminosity of 4.3 times thesolar luminosity.[7]

Planetary system

[edit]

Thestar has one knownexoplanet orbiting it namedTOI-813 b, aNeptune-likegas giant.[7]

The TOI-813 planetary system[3]
Companion
(in order from star)
MassSemimajor axis
(AU)
Orbital period
(days)
EccentricityInclinationRadius
b0.423+0.031
−0.037
83.8911+0.0027
−0.0031
089.64+0.24
−0.27
°
6.71±0.38 R🜨

References

[edit]
  1. ^"Finding the constellation which contains given sky coordinates".djm.cc. 2 August 2008.
  2. ^abcdeVallenari, 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 atVizieR.
  3. ^abcdEisner, N. L.; Barragán, O.; et al. (May 2020)."Planet Hunters TESS I: TOI 813, a subgiant hosting a transiting Saturn-sized planet on an 84-day orbit".Monthly Notices of the Royal Astronomical Society.494 (1):750–763.arXiv:1909.09094.Bibcode:2020MNRAS.494..750E.doi:10.1093/mnras/staa138.
  4. ^"CD-61 970".SIMBAD.Centre de données astronomiques de Strasbourg. Retrieved1 November 2023.
  5. ^"TOI-813 | NASA Exoplanet Archive".exoplanetarchive.ipac.caltech.edu. Retrieved2023-11-01.
  6. ^Anderson, Natali (2019-12-09)."TOI 813b: Saturn-Sized Exoplanet Found Orbiting Subgiant Star | Astronomy | Sci-News.com".Sci.News: Breaking Science News. Retrieved2023-11-01.
  7. ^ab"Exoplanet-catalog".Exoplanet Exploration: Planets Beyond our Solar System. 31 January 2020. Retrieved2023-11-01.
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