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HD 126614 Ab
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 126614 A</td></tr><tr> <td colspan="2">Constellation</td> <td>Virgo</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>14h 26m 48.281s[1]</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–05° 10′ 40.01″[1]</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>8.81</td></tr><tr><td colspan="2">Distance</td><td>240 ± 20[1] ly
(73 ± 5[1] pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K0</td></tr><tr> <td>Mass</td> <td style="text-align: center">(m)</td> <td>1.145 M</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>2.28 ± 0.02 AU
(340 Gm)</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>31.4 mas</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.94 AU
(141 Gm)</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>3.61 AU
(540 Gm)</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.59 ± 0.15</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>1186 ± 15 d
(3.25 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>20.9 km/s</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>239 ± 23°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>22511 ± 52 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>9.2 ± 1.6 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>0.42 ± 0.05 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>November 13, 2009</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Howard et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>Keck Observatory</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published[2]</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>

HD 126614 Ab, or simply HD 126614 b, (also known as HIP 70623 b) is an extrasolar planet which orbits the primary K-type star HD 126614 A, located approximately 240 light years away in the constellation Virgo. It was discovered on November 13, 2009. However, this planet has a highly eccentric orbit around its parent star. The planetary distance ranges from 0.94 AU to 3.61 AU. HD 126614 Ab also has the highest metallicity of any star hosting any exoplanets, 0.56

See also Edit

Other planets that were discovered or confirmed on November 13, 2009:

References Edit

  1. 1.0 1.1 1.2 1.3 (2007). Validation of the new Hipparcos reduction. Astronomy and Astrophysics 474 (2): 653–664. Vizier catalog entry
  2. (2010). The California Planet Survey. I. Four New Giant Exoplanets. The Astrophysical Journal 721 (2): 1467–1481.

Coordinates: Sky map 14h 26m 48.2804s, −05° 10′ 40.009″


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