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HD 86264 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 86264</td></tr><tr> <td colspan="2">Constellation</td> <td>Hydra</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>09h 56m 57.839s[1]</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–15° 53′ 42.43″[1]</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>7.42</td></tr><tr><td colspan="2">Distance</td><td>224 ± 9[1] ly
(69 ± 3[1] pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>F7V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>2.86 ± 0.07 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.86 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>4.86 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.7 ± 0.2</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>1475 ± 55 d
(4.04 ± 0.15 y)</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>306 ± 10°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>15172 ± 114 JD</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>7.0 ± 1.6 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>August 13, 2009</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td></td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</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 86264 b is an extrasolar planet which orbits the F-type main sequence star HD 86264, located approximately 237 light years away in the constellation Hydra.[2] The planet is considered to orbit in an eccentric path around the star with a period of about four years. This planet can be as close as 0.86 AU to as far as 4.86 AU. It has minimum mass seven Jupiter masses and orbits at a distance of 2.86 astronomical units. This planet was detected by radial velocity method on August 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. 2.0 2.1 (2009). Five planets and an independent confirmation of HD 196885 Ab from Lick Observatory. The Astrophysical Journal 703 (2): 1545–1556.

External linksEdit

Coordinates: Sky map 09h 56m 57.8388s, −15° 53′ 42.438″


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