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HD 149143 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 149143</td></tr><tr> <td colspan="2">Constellation</td> <td>Ophiuchus</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>16h 32m 51.0498s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+02° 05′ 05.395″</td></tr><tr><td colspan="2">Distance</td><td>207 ly
(63.5 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G0</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.0531 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.0531 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>0.0531 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>4.07 ± 0.70 d</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>143 km/s</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2453483.9 ± 1.2 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>149.6 ± 3 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>1.33 MJ
(423 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>22 August 2005</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Da Silva et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Doppler Spectroscopy</td></tr><tr> <td colspan="2">Discovery site</td> <td>Haute-Provence Observatory</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published[1][2]</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 149143 b is an extrasolar planet that has a minimum mass of 1.33 Jupiter masses. As is typical for a lot of hot Jupiters, its orbital eccentricity is low.[1][2]

ReferencesEdit

External linksEdit

Coordinates: Sky map 16h 32m 51.0498s, +02° 05′ 05.395″


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