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HD 20782 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 20782</td></tr><tr> <td colspan="2">Constellation</td> <td>Fornax</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>03h 20m 03.5776s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–28° 51′ 14.656″</td></tr><tr><td colspan="2">Distance</td><td>117 ly
(36 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G3V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>1.36 ± 0.12 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.102 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>2.62 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.97 ± 0.01[1]</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>585.86 ± 0.03 d
(1.6040 y)</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>147 ± 3°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2451687.1 ± 2.5 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>115 ± 12 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>1.8 ± 0.23 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>March 14, 2006</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Jones et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>Anglo-Australian Planet Search</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</td></tr>

Other designations
HIP 15527 b

<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 20782 b is an extrasolar planet located approximately 117 light-years away in the constellation of Fornax, orbiting the star HD 20782.

This planet orbits in the most eccentric orbit known (as of November 2012),[1] with a semi-major axis of 1.36 AU.

See also Edit

References Edit

  1. 1.0 1.1 (2009). Selection Functions in Doppler Planet Searches. MNRAS 392, 641.

External links Edit

  • HD 20782. Exoplanets. Retrieved 2008-08-29.

Coordinates: Sky map 03h 20m 03.5776s, −28° 51′ 14.656″

Template:HD20781HD20782


de:HD 20782 b

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