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HD 88133 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 88133</td></tr><tr> <td colspan="2">Constellation</td> <td>Leo</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>10h 10m 07.68s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+18° 11′ 12.74″</td></tr><tr><td colspan="2">Distance</td><td>242.7 ly
(74.46 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G5IV</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.0472±0.0027 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.0409 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>0.0535 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.133±0.072</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>3.41587±0.00059 d
(0.00935198 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>151 km/s</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>349°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,453,016.31±0.32 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>36.1±3.0 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>0.299±0.033 MJ
(95.0 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>September 6, 2004</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Fischer, Laughlin,
Butler et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity
(N2K Consortium)</td></tr><tr> <td colspan="2">Discovery site</td> <td>California</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>

HD 88133 b is an extrasolar planet orbiting the star HD 88133. It is probably less massive than Jupiter and even Saturn. It orbits the star in a very tight orbit, completing one revolution around the star in every three and half days or so. Despite the relatively large radius of the star (about 2 times Solar), no transits have been detected.[1][2]

ReferencesEdit

  1. (2005). The N2K Consortium. I. A Hot Saturn Planet Orbiting HD 88133. The Astrophysical Journal 620 (1): 481–486.
  2. (2006). Catalog of Nearby Exoplanets. The Astrophysical Journal 646 (1): 505–522.

External links Edit

Coordinates: Sky map 10h 10m 07.68s, +18° 11′ 12.74″


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