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HD 107148 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 107148</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>12h 19m 13.4909s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−03° 19′ 11.242″</td></tr><tr><td colspan="2">Distance</td><td>167.18 ± 8.48 ly
(51.26 ± 2.6 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G5V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.269 ± 0.016 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.26 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>0.28 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.05 ± 0.17</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>48.056 ± 0.057 d
(0.13157 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>61.1 km/s</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>75°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,399,987 ± 12 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>11 ± 1.8 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>0.21 ± 0.036 MJ
(67 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>15 July 2006</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Butler et al.[1]</td></tr><tr> <td colspan="2">Discovery method</td> <td>radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>Keck Observatory, USA</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published[1]</td></tr>

Other designations
HIP 60081 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 107148 b is a jovian exoplanet with minimum mass of only 70% that of Saturn. Unlike Saturn, it orbits much closer to the star, only 26.9% of distance of Earth to the Sun, but like Saturn, it has low eccentricity about the same as Saturn.[1]

See alsoEdit

ReferencesEdit

  1. 1.0 1.1 1.2 (2006). Catalog of Nearby Exoplanets. The Astrophysical Journal 646 (1): 505–522.

External links Edit

Coordinates: Sky map 12h 19m 13.4909s, −03° 19′ 11.242″


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