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14 Herculis c
Extrasolar planet List of extrasolar planets
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14 Herculis c in Celestia as an ammonia cloud gas giant
Parent star

<tr> <td colspan="2">Star</td> <td>14 Herculis</td></tr><tr> <td colspan="2">Constellation</td> <td>Hercules</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>16h 10m 23.59s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+43° 49′ 18.2″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>6.67</td></tr><tr><td colspan="2">Distance</td><td>59.0 ly
(18.1 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K0V</td></tr><tr> <td>Mass</td> <td style="text-align: center">(m)</td> <td>0.79 M</td></tr><tr> <td>Radius</td> <td style="text-align: center">(r)</td> <td>0.88 R</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>5250 K</td></tr><tr> <td>Metallicity</td> <td style="text-align: center">[Fe/H]</td> <td>0.35</td></tr><tr> <td>Age</td> <td style="text-align: center"></td> <td>3.9 Gyr</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>6.9[1] AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0[1]</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>6906 ± 70[1] d</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,449,100.0[1] JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>24.5 ± 1.4[1] m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>2.1[1] MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>17 November 2005
2 November 2006 (confirmed)</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Goździewski et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Doppler spectroscopy</td></tr><tr> <td colspan="2">Discovery site</td> <td>Template:Country data United States</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</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>

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 Edit

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 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.
  2. 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.

External links Edit


Template:14 Herculis

Coordinates: Sky map 16h 10m 23.59s, +43° 49′ 18.2″


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