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HD 101930 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 101930</td></tr><tr> <td colspan="2">Constellation</td> <td>Centaurus</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>11h 43m 30.11s[1]</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–58° 00′ 24.79″[1]</td></tr><tr><td colspan="2">Distance</td><td>95 ± 2[1] ly
(29.2 ± 0.7[1] pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K1V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.302 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.077 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>0.335 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.11 ± 0.02</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>70.46 ± 0.18 d
(0.1929 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>46.8 km/s</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>251 ± 11°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,453,145.0 ± 2.0 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>18.1 ± 0.4 m/s</td></tr>

Physical characteristics

<tr><td>Mass</td><td style="text-align: center">(m)</td><td>>0.30 MJ
(>95 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>14 February 2005</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Lovis, Mayor,
Pepe et al.[2]</td></tr><tr> <td colspan="2">Discovery method</td> <td>Doppler spectroscopy
(HARPS)</td></tr><tr> <td colspan="2">Discovery site</td> <td>La Silla Observatory</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published[2]</td></tr>

Other designations
GJ 3683 b, HIP 57172 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 101930 b is an extrasolar planet orbiting the star HD 101930. It has a minimum mass a third of Jupiter's, nearly the same as Saturn's so it is thought to be a gas giant. It orbits the star closer than Mercury, and the orbit is slightly eccentric.[2]

ReferencesEdit

External links Edit

Coordinates: Sky map 11h 43m 30.11s, −58° 00′ 24.793″


de:HD 101930 b

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