14 Herculis c
| Exoplanet | List of exoplanets | |
|---|---|---|
| Parent star | ||
| Star | 14 Herculis | |
| Constellation | Hercules | |
| Right ascension | (α) | 16h 10m 23.59s |
| Declination | (δ) | +43° 49′ 18.2″ |
| Apparent magnitude | (mV) | 6.67 |
| Distance | 59.0 ly (18.1 pc) | |
| Spectral type | K0V | |
| Mass | (m) | 0.79 M☉ |
| Radius | (r) | 0.88 R☉ |
| Temperature | (T) | 5250 K |
| Metallicity | [Fe/H] | 0.35 |
| Age | 3.9 Gyr | |
| Orbital elements | ||
| Semi-major axis | (a) | 6.9[1] AU |
| Eccentricity | (e) | 0[1] |
| Orbital period | (P) | 6906 ± 70[1] d |
| Time of periastron | (T0) | 2,449,100.0[1] JD |
| Semi-amplitude | (K) | 24.5 ± 1.4[1] m/s |
| Physical characteristics | ||
| Minimum mass | (m sin i) | 2.1[1] MJ |
| Discovery information | ||
| Discovery date | 17 November 2005 2 November 2006 (confirmed) | |
| Discoverer(s) | Goździewski et al. | |
| Discovery method | Doppler spectroscopy | |
| Discovery site |  United States | |
| Discovery status | Published | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
14 Herculis c or 14 Her c is an extrasolar planet approximately 59 light-years away in the constellation of Hercules. The planet was found orbiting the star 14 Herculis, with a mass that would likely make the planet a gas giant roughly the same size as Jupiter but much more massive. This planet was discovered on November 17, 2005 and confirmed 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]
References
- 1 2 3 4 5 6 7 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. arXiv:astro-ph/0609117. Bibcode:2007ApJ...654..625W. doi:10.1086/509110.
- ↑ 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. arXiv:astro-ph/0511463. Bibcode:2006ApJ...645..688G. doi:10.1086/504030.
External links
- Jean Schneider (2011). "Notes for Planet 14 Her c". Extrasolar Planets Encyclopaedia. Retrieved 30 September 2011.
- "14 Herculis". SolStation. Archived from the original on 19 July 2008. Retrieved 2008-06-25.
| ||||||||||
Coordinates: 
16h 10m 23.59s, +43° 49′ 18.2″
This article is issued from Wikipedia - version of the Tuesday, July 07, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.