# HD 82943 b

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Exoplanet

HD 82943 b Discovery Discovered by Mayor, Udry et al. Discovery site France Discovery date April 15, 2000[1] Detection method Doppler spectroscopy Orbital characteristics Semi-major axis 1.19 AU (178,000,000 km) Eccentricity 0.219 Orbital period (sidereal) 441.2 d Time of periastron 1373.1 Argument of periastron 284 Semi-amplitude 59.3 ± 5.2 Star HD 82943

**HD 82943 b** is an [extrasolar planet](/source/Extrasolar_planet) approximately 89 [light-years](/source/Light-year) away in the [constellation](/source/Constellation) of [Hydra](/source/Hydra_(constellation)). The planet was announced in 2000 by the [Geneva Extrasolar Planet Search Team](/source/Geneva_Extrasolar_Planet_Search_Team).[1] The planet is the outermost planet of two.[2]

## See also

- [HD 82943 c](/source/HD_82943_c)

## References

1. ^ [***a***](#cite_ref-eso0019_1-0) [***b***](#cite_ref-eso0019_1-1) ["Exoplanets Galore!"](http://www.eso.org/public/news/eso0019/) (Press release). Garching, Germany: [European Southern Observatory](/source/European_Southern_Observatory). April 15, 2000. Retrieved December 30, 2012.

1. **[^](#cite_ref-Mayor2004_2-0)** Mayor, M.; et al. (2004). ["The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE"](http://www.aanda.org/articles/aa/full/2004/07/aa0250/aa0250.html). *Astronomy and Astrophysics*. **415** (1): 391–402. [arXiv](/source/ArXiv_(identifier)):[astro-ph/0310316](https://arxiv.org/abs/astro-ph/0310316). [Bibcode](/source/Bibcode_(identifier)):[2004A&A...415..391M](https://ui.adsabs.harvard.edu/abs/2004A&A...415..391M). [doi](/source/Doi_(identifier)):[10.1051/0004-6361:20034250](https://doi.org/10.1051%2F0004-6361%3A20034250). [S2CID](/source/S2CID_(identifier)) [5233877](https://api.semanticscholar.org/CorpusID:5233877).

## External links

- ["Notes for planet HD 82943 b"](https://exoplanet.eu/catalog/hd_82943_b--51/). *[Extrasolar Planets Encyclopaedia](/source/Extrasolar_Planets_Encyclopaedia)*. Retrieved 2008-07-15.

- ["The Harsh Destiny of a Planet?"](https://web.archive.org/web/20080507074309/http://www.eso.org/public/outreach/press-rel/pr-2001/pr-10-01.html). *[European Southern Observatory](/source/European_Southern_Observatory)*. 2001-05-09. Archived from [the original](http://www.eso.org/public/outreach/press-rel/pr-2001/pr-10-01.html) on 2008-05-07. Retrieved 2008-07-15.

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