| 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 AU | |
| Eccentricity | 0.04+0.026 −0.024 |
| 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° |
| 42°+17° −18° | |
| 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
- ^ a b Marcy, Geoffrey W.; et al. (2005). "Five New Extrasolar Planets". The Astrophysical Journal. 619 (1): 570–584. Bibcode: 2005ApJ...619..570M. CiteSeerX 10.1.1.516.6667. doi: 10.1086/426384. S2CID 5803173.
- ^ a b c Xiao, Guang-Yao; Liu, Yu-Juan; et al. (May 2023). "The Masses of a Sample of Radial-Velocity Exoplanets with Astrometric Measurements". Research in Astronomy and Astrophysics. 23 (5): 055022. arXiv: 2303.12409. Bibcode: 2023RAA....23e5022X. doi: 10.1088/1674-4527/accb7e.
- ^ Butler, R. P.; et al. (2006). "Catalog of Nearby Exoplanets". The Astrophysical Journal. 646 (1): 505–522. arXiv: astro-ph/0607493. Bibcode: 2006ApJ...646..505B. doi: 10.1086/504701. hdl: 2299/1103. S2CID 119067572.
External links
- "HD 117207". Exoplanets. Archived from the original on 2009-11-25. Retrieved 2008-10-31.
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