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HD 72659 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 72659</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>08h 34m 03.1895s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−01° 34′ 05.583″</td></tr><tr><td colspan="2">Distance</td><td>168 ly
(51.4 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G0V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>4.77 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>3.49 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>6.05 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.269±0.038</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>3630±230 d
(9.94 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>14.3 km/s</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>258±13°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2451678±89 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>42.5±1.2 m/s</td></tr>

Physical characteristics

<tr><td>Mass</td><td style="text-align: center">(m)</td><td>>3.30±0.18 MJ
(>1050 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>13 June 2002</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Butler, Marcy, Vogt,
and Fischer</td></tr><tr> <td colspan="2">Discovery method</td> <td>Doppler spectroscopy</td></tr><tr> <td colspan="2">Discovery site</td> <td>Keck Observatory, Hawaii, USA</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</td></tr>

Other designations
HIP 42030 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 72659 b is a superjovian exoplanet[1] massing at least 3.3 MJ orbiting at 4.77 AU from the star taking 3630 days to orbit. The orbital distance range from 3.49 AU to 6.05 AU with orbital eccentricity of 0.269.

See also Edit

References Edit

  1. (2003). Seven New Keck Planets Orbiting G and K Dwarfs. The Astrophysical Journal 582 (1): 455–466.

External links Edit

Coordinates: Sky map 08h 34m 03.1895s, −01° 34′ 05.583″


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