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HD 86081 b
Extrasolar planet List of extrasolar planets
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Radial velocity of HD 86081 over time, caused by the orbit of HD 86081 b.
Parent star

<tr> <td colspan="2">Star</td> <td>HD 86081</td></tr><tr> <td colspan="2">Constellation</td> <td>Sextans</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>09h 56m 05.9183s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–03° 48′ 30.318″</td></tr><tr><td colspan="2">Distance</td><td>297 ly
(91 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>F8V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.035 AU
(5.2 Gm)</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>0.43 mas</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.035 AU
(5.2 Gm)</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>0.035 AU
(5.2 Gm)</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.008 ± 0.004</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>2.1375 ± 0.0002 d
(0.0058521 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>179 km/s</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>251 ± 40°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2453694.8 ± 0.3 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>207.7 ± 0.8 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>1.50 MJ
(477 M)</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>April 17, 2006</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Johnson et al.[1]</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 86081 b is a gas giant exoplanet that orbits close to its host star, completing its orbit for only 2.1375 days. With such a short orbit, it belongs to class of exoplanets known as hot Jupiters. Like most hot Jupiters, the orbit is nearly circular, with an eccentricity of 0.008.[1]

ReferencesEdit

External links Edit

Coordinates: Sky map 09h 56m 05.9183s, −03° 48′ 30.318″


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