HAT-P-14b
| Exoplanet | List of exoplanets | |
|---|---|---|
 | ||
| Parent star | ||
| Star | HAT-P-14 | |
| Constellation | Hercules[1] | |
| Right ascension | (α) | 17h 20m 27.876s[2] |
| Declination | (δ) | +38° 14′ 31.94″[2] |
| Apparent magnitude | (mV) | 9.98 |
| Distance | 670 ± 36 ly (205 ± 11 pc) | |
| Spectral type | F | |
| Mass | (m) | 1.386 ± 0.045 M☉ |
| Radius | (r) | 1.468 ± 0.054[3] R☉ |
| Temperature | (T) | 6600 ± 90 K |
| Metallicity | [Fe/H] | 0.11 ± 0.08 |
| Age | 1.3 ± 0.4 Gyr | |
| Orbital elements | ||
| Semi-major axis | (a) | 0.0606 ± 0.0007 AU (~9.06 Gm) |
| ~0.295 mas | ||
| Periastron | (q) | 0.0541 ± 0.0014 AU (~8.09 Gm) |
| Apastron | (Q) | 0.0671 ± 0.0016 AU (~10.03 Gm) |
| Eccentricity | (e) | 0.107 ± 0.013 |
| Orbital period | (P) | 4.6267669 ± 5e-06 d |
| (~111.0424 h) | ||
| Inclination | (i) | 83.5 ± 0.3° |
| Physical characteristics | ||
| Mass | (m) | 2.232 ± 0.059 MJ |
| Radius | (r) | 1.150 ± 0.052 RJ |
| Discovery information | ||
| Discovery date | 2010-03-10 | |
| Discoverer(s) | HATNet Project[4] | |
| Discovery method | Transit | |
| Discovery status | confirmed[4][5] | |
| Database references | ||
| Extrasolar Planets Encyclopaedia | data | |
| SIMBAD | data | |
| Exoplanet Archive | data | |
| Open Exoplanet Catalogue | data | |
HAT-P-14b is an extrasolar planet located approximately 205 parsecs (670 ly) away in the constellation of Hercules, orbiting the 10th magnitude F-type star HAT-P-14. This planet was discovered in 2010 by the HATNet Project using the transit method.[4] It was independently detected by the SuperWASP project.[5]
Orbit
HAT-P-14b is located very close orbit to its star, taking only 4.6 days to complete one orbit. Observations of the Rossiter–McLaughlin effect with the Keck telescope show that it orbits in a retrograde fashion relative to the rotation axes of its parent star.[3]
References
- ↑ Roman, Nancy G. (1987). "Identification of a Constellation From a Position". Publications of the Astronomical Society of the Pacific. 99 (617): 695–699. Bibcode:1987PASP...99..695R. doi:10.1086/132034. Vizier query form
- 1 2 Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. doi:10.1888/0333750888/2862. Vizier catalog entry
- 1 2 Winn, Joshua N.; et al. (2011). "Orbital Orientations of Exoplanets: HAT-P-4b is Prograde and HAT-P-14b is Retrograde". The Astronomical Journal. 141 (2). 63. arXiv:1010.1318
. Bibcode:2011AJ....141...63W. doi:10.1088/0004-6256/141/2/63. - 1 2 3 Torres, G.; et al. (2010). "HAT-P-14b: A 2.2 MJ Exoplanet Transiting a Bright F Star". The Astrophysical Journal. 715 (1): 458–467. arXiv:1003.2211. Bibcode:2010ApJ...715..458T. doi:10.1088/0004-637X/715/1/458.
- 1 2 Simpson, E. K.; et al. (2011). "Independent Discovery of the Transiting Exoplanet HAT-P-14b". The Astronomical Journal. 141 (5). 161. arXiv:1009.3470. Bibcode:2011AJ....141..161S. doi:10.1088/0004-6256/141/5/161.
External links
Media related to HAT-P-14b at Wikimedia Commons
- "HAT-P-14 b". Exoplanets.
- "HAT-P-14b in transit". Light curve using differential photometry.
Coordinates: 
17h 20m 28s, +38° 14′ 32″
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.