HD 196050 b
HD 196050 b is a 1378-day extrasolar planet with a minimum mass of 2.90 Jupiter mass. The average orbital distance is 2.54 astronomical units or 380 gigameters or 12.3 microparsecs. The orbital eccentricity is 22.8%. The periastron (closest) distance is 1.96 AU and the apastron (farthest) distance is 3.12 AU. The average orbital velocity is 20.1 km/s and the semi-amplitude is 49.7 m/s. The longitude of periastron is 187° and the time of periastron is 2,450,843 JD.
| Discovery | |
|---|---|
| Discovered by | Jones et al. |
| Discovery site | Anglo-Australian Observatory |
| Discovery date | 13 June 2002 |
| Doppler spectroscopy (AAT) | |
| Orbital characteristics | |
| Apastron | 3.12 AU (467,000,000 km) |
| Periastron | 1.96 AU (293,000,000 km) |
| 2.54 AU (380,000,000 km) | |
| Eccentricity | 0.228 ± 0.038 |
| 1378 ± 21 d 3.773 y | |
Average orbital speed | 20.1 |
| 187 ± 12 | |
| Semi-amplitude | 49.7 ± 2 |
| Star | HD 196050 |
The planet is typically discovered by using Doppler spectrometer by looking for shifts in the spectrum of the star. In Australia, Jones et al. found this planet in 2002 by using the telescope in Anglo-Australian Observatory.
See also
- HD 190228 b
- HD 195019 b
References
- Jones; Paul Butler, R.; Marcy, Geoffrey W.; Tinney, Chris G.; Penny, Alan J.; McCarthy, Chris; Carter, Brad D. (2002). "Extrasolar planets around HD 196050, HD 216437 and HD 160691". Monthly Notices of the Royal Astronomical Society. 337 (4): 1170–1178. arXiv:astro-ph/0206216. Bibcode:2002MNRAS.337.1170J. doi:10.1046/j.1365-8711.2002.05787.x. Archived from the original (abstract) on 2012-12-04.web preprint
- Greenhill; et al. (2002). "epsilon Eridani, upsilon Andromedae, 51 Pegasi, HD 209458, HD 196050". IAU Circ. Bibcode:2002IAUC.7985....1G.
- Mugrauer; Neuhäuser, R.; Seifahrt, A.; Mazeh, T.; Guenther, E. (2005). "Four new wide binaries among exoplanet host stars". Astronomy and Astrophysics. 440 (3): 1051–1060. arXiv:astro-ph/0507101. Bibcode:2005A&A...440.1051M. doi:10.1051/0004-6361:20042297.
External links
- "HD 196050". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-11-01.
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