Astronomy:HD 117207 b
From HandWiki
Short description: Extrasolar planet orbiting HD 117207
| Discovery[1] | |
|---|---|
| Discovered by | Marcy et al. |
| Discovery site | Keck Observatory |
| Discovery date | 25 January 2005 |
| radial velocity | |
| Orbital characteristics[2] | |
| 3.773+0.036 −0.035 astronomical unit|AU | |
| Eccentricity | 0.04+0.026 −0.024 |
| Orbital period | 2606+12 −13 d 7.136+0.034 −0.035 yr |
| Average Orbital speed | 15.9 |
| Inclination | 76.6°+9.3° −12.0° or 103.4°+12.0° −9.3° |
| Longitude of ascending node | 42°+17° −18° |
| astron|astron|helion}} | 2456669+341 −339 |
| 186°+48° −47° | |
| Semi-amplitude | 26.6±0.93 |
| Star | HD 117207 |
| Physical characteristics[2] | |
| Mass | 2.106+0.16 −0.089 MJ |
HD 117207 b is an exoplanet orbiting at 3.77 astronomical units around HD 117207, taking about 7.14 years to complete its orbit. Its orbit has a low to moderate eccentricity. This planet was announced in January 2005 by Marcy at the Keck Observatory.[1] HD 117207 b has a minimum mass of 1.88 Jupiter masses,[3] and in 2023 its inclination and true mass were determined via astrometry.[2]
References
- ↑ 1.0 1.1 Marcy, Geoffrey W. et al. (2005). "Five New Extrasolar Planets". The Astrophysical Journal 619 (1): 570–584. doi:10.1086/426384. Bibcode: 2005ApJ...619..570M.
- ↑ 2.0 2.1 2.2 Xiao, Guang-Yao et al. (May 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics 23 (5): 055022. doi:10.1088/1674-4527/accb7e. Bibcode: 2023RAA....23e5022X.
- ↑ Butler, R. P. et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal 646 (1): 505–522. doi:10.1086/504701. Bibcode: 2006ApJ...646..505B. http://www.iop.org/EJ/article/0004-637X/646/1/505/64046.html.
External links
Coordinates: 
13h 29m 21.1137s, −35° 34′ 15.589″
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