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HD 213240 b

Summary

HD 213240 b is an exoplanet located 134 light-years (41 parsecs) from the Solar System in the constellation of Grus. It is a gas giant orbiting the G-type star HD 213240.[3]

HD 213240 b
Discovery[1]
Discovered bySantos et al.
Discovery siteGeneva Extrasolar Planet Search
Discovery dateApril 4, 2001
Doppler spectroscopy
Orbital characteristics[2]
1.92±0.026 AU
Eccentricity0.4201+0.01
−0.0093
879±3 d
2.4071+0.008
−0.0083 yr
23.7
Inclination63°+17°
−20° or 117°+20°
−17°
145°+21°
−121°
2455901±12
201.9°+1.4°
−1.5°
Semi-amplitude96.6 ± 2.0
StarHD 213240
Physical characteristics[2]
Mass5.21+1.5
−0.49 MJ

The planet was discovered in 2001 as part of the CORALIE[4] extra-solar planet search program. It was described in a 2001 publication by astronomers N. C. Santos, M. Mayor, D. Naef, F. Pepe, D. Queloz, S. Udry and M. Burnet of Observatoire de Genève, Switzerland.[1] Doppler spectroscopy was used. In 2023, the inclination and true mass of HD 213240 b were determined via astrometry.[2]

See also edit

References edit

  1. ^ a b Santos, N. C.; et al. (2001). "The CORALIE survey for southern extra-solar planets VI. New long period giant planets around HD 28185 and HD 213240". Astronomy and Astrophysics. 379 (3): 999–1004. arXiv:astro-ph/0106255. Bibcode:2001A&A...379..999S. doi:10.1051/0004-6361:20011366. S2CID 59061741.
  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.
  3. ^ "HD 213240". Exoplanet Exploration. NASA. Retrieved 3 October 2020.
  4. ^ "CORALIE". European Southern Observatory. Retrieved 3 October 2020.

External links edit

  • "Notes for planet HD 213240 b". Extrasolar Planets Encyclopaedia. Retrieved 2008-08-29.
  • "HD 213240". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-08-29.