HD 196050 b

HD 196050 b
Discovery
Discovered by	Jones et al.
Discovery site	Anglo-Australian Observatory
Discovery date	13 June 2002
Detection method	Doppler spectroscopy (AAT)
Orbital characteristics
Apastron	3.12 AU (467,000,000 km)
Periastron	1.96 AU (293,000,000 km)
Semi-major axis	2.54 AU (380,000,000 km)
Eccentricity	0.228 ± 0.038
Orbital period	1378 ± 21 d; 3.773 y
Average orbital speed	20.1
Argument of periastron	187 ± 12
Semi-amplitude	49.7 ± 2
Star	HD 196050

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.

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.

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.

"HD 196050". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-11-01.

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