HD 196050 b

HD 196050 b
Discovery[1]
Discovered byJones et al.
Discovery siteAnglo-Australian Observatory
Discovery date13 June 2002
Doppler spectroscopy (AAT)
Orbital characteristics[2]
2.585+0.032
−0.035 AU
Eccentricity0.178±0.011
1393±9 d
3.813+0.026
−0.024 yr
20.1
Inclination41.0°+10.0°
−6.3° or 139.0°+6.3°
−10.0°
15.2°+157.0°
−9.2°
2456307+46
−47
165.3°+9.4°
−10.0°
Semi-amplitude49.7 ± 2
StarHD 196050
Physical characteristics[2]
Mass4.55+0.69
−0.72 MJ

HD 196050 b is an exoplanet with a 1378-day period and a minimum mass of 2.90 Jupiter masses. The average orbital distance is 2.54 astronomical units and the orbital eccentricity is 22.8%. The periastron (closest) distance is 1.96 AU and the apastron (farthest) distance is 3.12 AU. The average orbital velocity is 20.1 km/s and the semi-amplitude is 49.7 m/s. The longitude of periastron is 187° and the time of periastron is 2,450,843 JD.

The planet was discovered by using Doppler spectroscopy by looking for shifts in the spectrum of the star. In Australia, Jones et al. found this planet in 2002 by using the telescope in Anglo-Australian Observatory.[1] In 2023, the inclination and true mass of HD 196050 b were determined via astrometry.[2]

See also

References

  1. ^ a b Jones, Hugh R. A.; Paul Butler, R.; Marcy, Geoffrey W.; Tinney, Chris G.; Penny, Alan J.; McCarthy, Chris; Carter, Brad D. (2002). "Extrasolar planets around HD 196050, HD 216437 and HD 160691". Monthly Notices of the Royal Astronomical Society. 337 (4): 1170–1178. arXiv:astro-ph/0206216. Bibcode:2002MNRAS.337.1170J. doi:10.1046/j.1365-8711.2002.05787.x. S2CID 119520409.
  2. ^ a b c Xiao, Guang-Yao; Liu, Yu-Juan; et al. (May 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics. 23 (5): 055022. arXiv:2303.12409. Bibcode:2023RAA....23e5022X. doi:10.1088/1674-4527/accb7e.
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