astro.wikisort.org - Meteorite
HD 167042 b is a gas giant extrasolar planet located approximately 163 light-years away in the constellation of Draco, orbiting the star HD 167042. The mass 1.7 MJ is only minimum since the inclination of the orbital plane is unknown. As it is typical for most known extrasolar planets, it orbits less than 3 AU from the parent star, hence taking less than 2,000 days (5.5 years) to revolve. For this planet, it orbits at 1.30 AU and taking 413 days to revolve around the star. Unlike most exoplanets, the eccentricity of the orbit is low, only 3%.
| Discovery | |
|---|---|
| Discovered by | Johnson "et al." |
| Discovery site | Lick Observatory |
| Discovery date | Sept 20, 2007 published Oct 22, 2007 |
Detection method | radial velocity |
| Orbital characteristics | |
| Apastron | 1.34 AU (200,000,000 km) |
| Periastron | 1.26 AU (188,000,000 km) |
Semi-major axis | 1.30 AU (194,000,000 km) |
| Eccentricity | 0.027±0.04 |
Orbital period (sidereal) | 412.6±4 d 1.130 y |
Average orbital speed | 34.4 |
Time of periastron | 2453330±120 |
Argument of periastron | 34±40 |
| Semi-amplitude | 29.7 |
| Star | HD 167042 |
This planet was discovered in 2007 on September 20 and published on March 1. This planet was typical as it was discovered spectroscopically using the radial velocity method.[1]
See also
References
- Johnson, John Asher; et al. (2008). "Retired A Stars and Their Companions. II. Jovian Planets Orbiting κ CrB and HD 167042". The Astrophysical Journal. 675 (1): 784–789. arXiv:0711.4367. Bibcode:2008ApJ...675..784J. doi:10.1086/526453.
External links
- "HD 167042". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-08-24.
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