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Exoplanet Comparison HAT-P-14 b.png
Size comparison of HAT-P-14b (gray) with Jupiter.
Discovered byHATNet Project[1]
Discovery date2010-03-10
Orbital characteristics
4.627682±0.000003[3] d
Physical characteristics
Mean radius
1.150±0.052[1] RJ
Mass2.303±0.054[2] MJ

HAT-P-14b is an extrasolar planet located approximately 250 parsecs (820 ly)[4] 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.[1] It was independently detected by the SuperWASP project.[5]


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.[6]


  1. ^ a b c d 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.
  2. ^ a b Bonomo, A. S.; et al. (2017). "The GAPS Programme with HARPS-N at TNG . XIV. Investigating giant planet migration history via improved eccentricity and mass determination for 231 transiting planets". Astronomy and Astrophysics. 602. A107. arXiv:1704.00373. Bibcode:2017A&A...602A.107B. doi:10.1051/0004-6361/201629882.
  3. ^ Nascimbeni, V.; et al. (2011). "TASTE: The Asiago Search for Transit timing variations of Exoplanets. I. Overview and improved parameters for HAT-P-3b and HAT-P-14b". Astronomy and Astrophysics. 526. A85. arXiv:1011.6395. Bibcode:2011A&A...527A..85N. doi:10.1051/0004-6361/201015199.
  4. ^ Brown, A. G. A; et al. (2016). "Gaia Data Release 1. Summary of the astrometric, photometric, and survey properties". Astronomy and Astrophysics. 595. A2. arXiv:1609.04172. Bibcode:2016A&A...595A...2G. doi:10.1051/0004-6361/201629512.Gaia Data Release 1 catalog entry
  5. ^ 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.
  6. ^ 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.

External links[edit]

Media related to HAT-P-14b at Wikimedia Commons

Coordinates: Sky map 17h 20m 28s, +38° 14′ 32″