HD 213240 b

HD 213240 b is an extrasolar planet located approximately 133 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.[2]

HD 213240 b
Discovery
Discovered bySantos et al.[1]
Discovery siteGeneva Extrasolar Planet Search
Discovery dateApril 4, 2001
Doppler spectroscopy
Orbital characteristics
Apastron2.73 AU (408,000,000 km)
Periastron1.11 AU (166,000,000 km)
1.92 AU (287,000,000 km)
Eccentricity0.421 ± 0.015
882.7 ± 7.6 d
2.417 y
23.7
2451499 ± 12
201.0 ± 3.2
Semi-amplitude96.6 ± 2.0
StarHD 213240

    The planet was discovered in 2001 in the context of the CORALIE [3] 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.

    See also

    References
    1. 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.
    2. "HD 213240". Exoplanet Exploration. NASA. Retrieved 3 October 2020.
    3. "CORALIE". European Southern Observatory. Retrieved 3 October 2020.


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