# HD 74156 b

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Exoplanet that orbits the star HD 74516

HD 74156 b Discovery Discovered by Dominique Naef, Michel Mayor et al.[1] Discovery site California Discovery date Apr 4, 2001[2] Detection method Radial velocity Orbital characteristics Semi-major axis 0.2916±0.0033 AU Eccentricity 0.6380±0.0061[3] Orbital period (sidereal) 51.6385±0.0015[3] d Time of periastron 2450793.39±0.11[3] Argument of periastron 175.35±0.92[3] Semi-amplitude 109.1±1.6[3] Star HD 74156

**HD 74156 b** is an [extrasolar planet](/source/Extrasolar_planet) at least 1.88 times the mass of [Jupiter](/source/Jupiter) that orbits the star [HD 74156](/source/HD_74156). It is most likely a [gas giant](/source/Gas_giant). This planet was discovered in April 2001 by [Dominique Naef](https://fr.wikipedia.org/wiki/Dominique_Naef) and [Michel Mayor](/source/Michel_Mayor) along with the second planet [HD 74156 c](/source/HD_74156_c).[2][1]

## References

1. ^ [***a***](#cite_ref-Naef2004_1-0) [***b***](#cite_ref-Naef2004_1-1) 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"](http://www.aanda.org/index.php?option=article&access=standard&Itemid=129&url=/articles/aa/pdf/2004/04/aa0091.pdf) (PDF). *[Astronomy and Astrophysics](/source/Astronomy_and_Astrophysics)*. **414** (1): 351–359. [arXiv](/source/ArXiv_(identifier)):[astro-ph/0310261](https://arxiv.org/abs/astro-ph/0310261). [Bibcode](/source/Bibcode_(identifier)):[2004A&A...414..351N](https://ui.adsabs.harvard.edu/abs/2004A&A...414..351N). [doi](/source/Doi_(identifier)):[10.1051/0004-6361:20034091](https://doi.org/10.1051%2F0004-6361%3A20034091). [S2CID](/source/S2CID_(identifier)) [16603563](https://api.semanticscholar.org/CorpusID:16603563).

1. ^ [***a***](#cite_ref-eso0114_2-0) [***b***](#cite_ref-eso0114_2-1) ["Exoplanets: The Hunt Continues!"](http://www.eso.org/public/news/eso0114/) (Press release). Garching, Germany: European Southern Observatory. April 4, 2001. Retrieved December 27, 2012.

1. ^ [***a***](#cite_ref-Feng2015_3-0) [***b***](#cite_ref-Feng2015_3-1) [***c***](#cite_ref-Feng2015_3-2) [***d***](#cite_ref-Feng2015_3-3) [***e***](#cite_ref-Feng2015_3-4) Feng, Y. Katherina; et al. (2015). "The California Planet Survey IV: A Planet Orbiting the Giant Star HD 145934 and Updates to Seven Systems with Long-period Planets". *The Astrophysical Journal*. **800** (1). 22. [arXiv](/source/ArXiv_(identifier)):[1501.00633](https://arxiv.org/abs/1501.00633). [Bibcode](/source/Bibcode_(identifier)):[2015ApJ...800...22F](https://ui.adsabs.harvard.edu/abs/2015ApJ...800...22F). [doi](/source/Doi_(identifier)):[10.1088/0004-637X/800/1/22](https://doi.org/10.1088%2F0004-637X%2F800%2F1%2F22). [S2CID](/source/S2CID_(identifier)) [56390823](https://api.semanticscholar.org/CorpusID:56390823).

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