HD 74156 c

Last updated
HD 74156 c
Discovery
Discovered by Dominique Naef, Michel Mayor et al. [1]
Discovery site California
Discovery dateApr 4, 2001 [2]
Radial velocity
Orbital characteristics [3]
3.678+0.145
−0.159  AU
Eccentricity 0.377±0.006
2,448.5 ± 4.2 days (6.704 ± 0.011  a)
Inclination 120.162°+7.601°
−66.225°
210.652°+7.606°
−42.039°
2448568.530+13.016
−11.742
271.934°+1.178°
−1.505°
Semi-amplitude 113.940+0.974
−1.099  m/s
Star HD 74156
Physical characteristics [3]
Mass 8.665+1.385
−0.470  MJ

    HD 74156 c is an extrasolar planet with a minimum mass about eight times that of Jupiter orbiting the star HD 74156. It is most likely a gas giant. This planet was discovered by Dominique Naef and Michel Mayor in April 2001 together with the planet HD 74156 b. [2] [1] In 2022, the inclination and true mass of HD 74156 c were measured via astrometry. [3]

    References

    1. 1 2 Naef, Dominique; Mayor, Michel; Beuzit, Jean-Luc; Perrier, Christian; Queloz, Didier; Sivan, Jean-Pierre; Udry, Stéphane (2004). "The ELODIE survey for northern extra-solar planets. III. Three planetary candidates detected with ELODIE" (PDF). Astronomy and Astrophysics . 414 (1): 351–359. arXiv: astro-ph/0310261 . Bibcode:2004A&A...414..351N. doi:10.1051/0004-6361:20034091. S2CID   16603563.
    2. 1 2 "Exoplanets: The Hunt Continues!" (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 27, 2012.
    3. 1 2 3 Feng, Fabo; Butler, R. Paul; et al. (August 2022). "3D Selection of 167 Substellar Companions to Nearby Stars". The Astrophysical Journal Supplement Series . 262 (21): 21. arXiv: 2208.12720 . Bibcode:2022ApJS..262...21F. doi: 10.3847/1538-4365/ac7e57 . S2CID   251864022.


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