14 Herculis c
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| Extrasolar planet | List of extrasolar planets | |
|---|---|---|
| Parent star | ||
| Star | 14 Herculis | |
| Constellation | Hercules | |
| Right ascension | (α) | 16h 10m 23.59s |
| Declination | (δ) | +43° 49′ 18.2″ |
| Distance | 59.0 ly (18.1 pc) | |
| Spectral type | K0V | |
| Orbital elements | ||
| Semimajor axis | (a) | 6.9[1] AU |
| Eccentricity | (e) | 0[1] |
| Orbital period | (P) | 6906 ± 70[1] d |
| Angular distance | (θ) | 380 mas |
| Time of periastron | (T0) | 2,449,100.0[1] JD |
| Semi-amplitude | (K) | 24.5 ± 1.4[1] m/s |
| Physical characteristics | ||
| Mass | (m) | >2.1[1] MJ |
| Discovery information | ||
| Discovery date | November 17, 2005 published November 2, 2006 |
|
| Discoverer(s) | Goździewski et al. | |
| Detection method | Doppler Spectroscopy | |
| Discovery site | Texas, United States | |
| Discovery status | Poorly constrained | |
14 Herculis c is an extrasolar planet around 14 Herculis. It is likely to be a gas giant about the same size as Jupiter. This planet was discovered on November 17, 2005 and published on November 2, 2006.[2] According to a recent analysis, the existence of a second planet in the 14 Herculis system is "clearly" supported by the evidence, but the planet's parameters are not precisely known. It may be in a 4:1 resonance with the inner planet 14 Herculis b.[1]
[edit] References
- ^ a b c d e f g Wittenmyer, R. A., Endl, M., Cochran, W. D. (2007). "Long-Period Objects in the Extrasolar Planetary Systems 47 Ursae Majoris and 14 Herculis". The Astrophysical Journal 654 (1): 625 – 632. doi:.
- ^ Goździewski, K., Konacki, M., Maciejewski, A. J. (2006). "Orbital Configurations and Dynamical Stability of Multiplanet Systems around Sun-like Stars HD 202206, 14 Herculis, HD 37124, and HD 108874". The Astrophysical Journal 645 (1): 688 – 703. doi:.
