Astronomy:HD 171028 b

HD 171028 b

Discovery
Discovered by	Santos et al.
Discovery date	July 13, 2007
Detection method	Doppler spectroscopy
Orbital characteristics
astron|astron|helion}}	2.08 AU (311,000,000 km)
astron|astron|helion}}	0.50 AU (75,000,000 km)
Semi-major axis	1.29 AU (193,000,000 km)
Eccentricity	0.61
Orbital period	538±2 d 1.47 y
Average Orbital speed	26.2
astron|astron|helion}}	2453648.92±1.89
astron|astron|helion}}	305±1
Semi-amplitude	?
Star	HD 171028
Physical characteristics
Mass	>1.83 |♃|J}}}}}}

HD 171028 b is a >1.83 M_J exoplanet orbiting very eccentrically around HD 171028. The period is 1.47 years and semi-major axis of 1.29 AU. The Geneva Extrasolar Planet Search team announced the discovery of planet on July 13, 2007.

References

• Santos; Mayor, M.; Bouchy, F.; Pepe, F.; Queloz, D.; Udry, S. (2007). "The HARPS search for southern extra-solar planets XII. A giant planet orbiting the metal-poor star HD 171028" (abstract). Astronomy and Astrophysics 474 (2): 647–651. doi:10.1051/0004-6361:20078129. Bibcode: 2007A&A...474..647S. http://www.aanda.org/articles/aa/abs/2007/41/aa8129-07/aa8129-07.html.  web preprint

External links

• "HD 171028". Exoplanets. http://media4.obspm.fr/exoplanets/base/etoile.php?nom=HD+171028.