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HAT-P-14b
Extrasolar planet List of extrasolar planets
300px
Size comparison of HAT-P-14b (gray) with Jupiter.
Parent star

<tr> <td colspan="2">Star</td> <td>HAT-P-14</td></tr><tr> <td colspan="2">Constellation</td> <td>Hercules[1]</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>17h 20m 27.876s[2]</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+38° 14′ 31.94″[2]</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>9.98</td></tr><tr><td colspan="2">Distance</td><td>670 ± 36 ly
(205 ± 11 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>F</td></tr><tr> <td>Mass</td> <td style="text-align: center">(m)</td> <td>1.386 ± 0.045 M</td></tr><tr> <td>Radius</td> <td style="text-align: center">(r)</td> <td>1.468 ± 0.054[3] R</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>6600 ± 90 K</td></tr><tr> <td>Metallicity</td> <td style="text-align: center">[Fe/H]</td> <td>0.11 ± 0.08</td></tr><tr> <td>Age</td> <td style="text-align: center"></td> <td>1.3 ± 0.4 Gyr</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.0606 ± 0.0007 AU
(~9.06 Gm)</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>~0.295 mas</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.0541 ± 0.0014 AU
(~8.09 Gm)</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>0.0671 ± 0.0016 AU
(~10.03 Gm)</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.107 ± 0.013</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>4.6267669 ± 5e-06 d</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>(~111.0424 h)</td></tr><tr> <td>Inclination</td> <td style="text-align: center">(i)</td> <td>83.5 ± 0.3°</td></tr>

Physical characteristics

<tr><td>Mass</td><td style="text-align: center">(m)</td><td>2.232 ± 0.059 MJ</td></tr><tr><td>Radius</td><td style="text-align: center">(r)</td><td>1.150 ± 0.052 Template:Jupiter radius</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>2010-03-10</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>HATNet Project[4]</td></tr><tr> <td colspan="2">Discovery method</td> <td>Transit</td></tr><tr> <td colspan="2">Discovery status</td> <td>confirmed[4][5]</td></tr> <tr style="background-color: #A0B0FF;"><td align=center colspan=3>Database references</td></tr><tr valign=baseline><td colspan=2>Extrasolar Planets
Encyclopaedia
</td><td>data</td></tr><tr><td colspan=2>SIMBAD</td><td>data</td></tr>

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]

OrbitEdit

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]

ReferencesEdit

  1. (1987). Identification of a Constellation From a Position. Publications of the Astronomical Society of the Pacific 99 (617): 695–699. Vizier query form
  2. 2.0 2.1 (2000). The Tycho-2 catalogue of the 2.5 million brightest stars. Astronomy and Astrophysics 355: L27–L30. Vizier catalog entry
  3. 3.0 3.1 (2011). Orbital Orientations of Exoplanets: HAT-P-4b is Prograde and HAT-P-14b is Retrograde. The Astronomical Journal 141 (2).
  4. 4.0 4.1 4.2 (2010). HAT-P-14b: A 2.2 MJ Exoplanet Transiting a Bright F Star. The Astrophysical Journal 715 (1): 458–467.
  5. 5.0 5.1 (2011). Independent Discovery of the Transiting Exoplanet HAT-P-14b. The Astronomical Journal 141 (5).

External linksEdit

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


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