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HD 70642 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 70642</td></tr><tr> <td colspan="2">Constellation</td> <td>Puppis</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>08h 21m 28.1361s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−39° 42′ 19.474″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>7.18</td></tr><tr><td colspan="2">Distance</td><td>93.8 ly
(28.76 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G5V</td></tr><tr> <td>Mass</td> <td style="text-align: center">(m)</td> <td>1.00 ± 0.05 M</td></tr><tr> <td>Radius</td> <td style="text-align: center">(r)</td> <td>1.01 R</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>5533 K</td></tr><tr> <td>Metallicity</td> <td style="text-align: center">[Fe/H]</td> <td>0.16 ± 0.02</td></tr><tr> <td>Age</td> <td style="text-align: center"></td> <td>3.8 Gyr</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>3.232 AU
(483.5 Gm)</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>112.4 mas</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>3.123 AU
(467.2 Gm)</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>3.341 AU
(499.8 Gm)</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.034 ± 0.043</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>2068 ± 39 d
(5.66 y)</td></tr><tr> <td>Orbital speed</td> <td style="text-align: center">(υ)</td> <td>17.06 km/s</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>205°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,451,350 ± 380 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>30.4 ± 1.3 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>1.97 ± 0.06 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>July 3, 2003</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Carter et al.[1]</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity
(Anglo-Australian Telescope)</td></tr><tr> <td colspan="2">Discovery site</td> <td>Anglo-Australian Observatory</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published[1]</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 70642 b is an extrasolar planet orbiting the star HD 70642 at 3.23 AU distance and takes 5.66 years to revolve. This planet may have systems of moons like Jupiter.[1] This planet was discovered on July 3, 2003.

See alsoEdit

ReferencesEdit

  1. 1.0 1.1 1.2 (2003). A Planet in a Circular Orbit with a 6 Year Period. The Astrophysical Journal Letters 593 (1): L43–L46.

External linksEdit

Coordinates: Sky map 08h 21m 28.1361s, −39° 42′ 19.474″

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