HD 23079 b
| Discovery | |
|---|---|
| Discovered by | Tinneyet al. |
| Discovery site |  Anglo-Australian Observatory |
| Discovery date | October 2001 |
| doppler spectroscopy | |
| Orbital characteristics | |
| 1.60 ± 0.12 AU (239,000,000 ± 18,000,000 km) | |
| Eccentricity | 0.102 ± 0.031 |
| 730.6 ± 5.7d 2.000y | |
| 2,450,492 ± 37 | |
| 55 ± 17 | |
| Semi-amplitude | 54.9 ± 1.1 |
| Star | HD 23079 |
HD 23079 b,formally namedGuarani,is anexoplanetapproximately 109light yearsaway in theconstellationReticulum.The planet hasmassof at least 2.45 Jupiters, although only theminimum massis known sinceinclinationis unknown. The planet takes almost exactly two years to orbit the star at the average distance of 1.6AU.The planet'sorbital eccentricityis about the same as109 Piscium b,HD 75898 b,andHD 69830 bat 0.102. The distance range from as close as 1.44 AU to as far away as 1.76 AU from the parent star.
The planet was discovered in 2001 by Tinney et al., who useddoppler spectrometerto look for shifts of star's spectrum caused by agravityof the planet tug the star around as the planet orbits.
The planet HD 23079 b is namedGuarani.The name was selected in theNameExoWorldscampaign byBrazil,during the 100th anniversary of theIAU.The planet is named after theGuarani people.[1][2]HD 63765and the planet HD 63765 b have names associated with Guarani cosmovision, selected byBolivia.
References
[edit]- ^"International Astronomical Union | IAU".www.iau.org.Retrieved2020-01-02.
- ^"Approved names".NameExoworlds.Retrieved2020-01-02.
- Dvorak, R.; Pilat-Lohinger, E.; Schwarz, R.; Freistetter, F. (2004). "Extrasolar Trojan planets close to habitable zones".Astronomy & Astrophysics.426(2): L37.arXiv:astro-ph/0408079.Bibcode:2004A&A...426L..37D.doi:10.1051/0004-6361:200400075.S2CID15637771.
External links
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