HD 117207 b
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | HD 117207 | |
| Constellation | Centaurus | |
| Right ascension | (α) | 13h 29m 21.1137s |
| Declination | (δ) | −35° 34′ 15.589″ |
| Distance | 108 ly (33 pc) | |
| Spectral type | G7IV-V | |
| Orbital elements | ||
| Semi-major axis | (a) | 3.79 AU |
| Periastron | (q) | 3.24 AU |
| Apastron | (Q) | 4.34 AU |
| Eccentricity | (e) | 0.144±0.035 |
| Orbital period | (P) | 2597±41 d (7.110 y) |
| Orbital speed | (υ) | 15.9 km/s |
| Argument of periastron |
(ω) | 81.7±19.9° |
| Time of periastron | (T0) | 2450666.43±148.89 JD |
| Semi-amplitude | (K) | 26.6±0.93 m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 1.88 MJ |
| Discovery information | ||
| Discovery date | 25 January 2005 | |
| Discoverer(s) | Marcy et al. | |
| Discovery method | radial velocity | |
| Discovery site | Keck Observatory | |
| Discovery status | Published | |
| Other designations | ||
| HIP 65808 b | ||
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HD 117207 b is an extrasolar planet orbiting at 3.79 astronomical units taking about 2597 days to complete its orbit around HD 117207. Its orbit is moderate in eccentricity. This planet was announced in January 2005 by Marcy in Keck Observatory. The planet has at least 1.88 Jupiter masses.[1][2]
References
- ↑ Marcy, Geoffrey W.; et al. (2005). "Five New Extrasolar Planets". The Astrophysical Journal. 619 (1): 570–584. Bibcode:2005ApJ...619..570M. doi:10.1086/426384.
- ↑ 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.
External links
- "HD 117207". Exoplanets.
Coordinates: 
13h 29m 21.1137s, −35° 34′ 15.589″
This article is issued from Wikipedia - version of the 12/29/2014. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.