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HD 4313 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 4313</td></tr><tr> <td colspan="2">Constellation</td> <td>Pisces</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>00h 45m 40s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+07° 50′ 42″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>7.83</td></tr><tr><td colspan="2">Distance</td><td>447 ± 46 ly
(137 ± 14 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G5 D</td></tr><tr> <td>Mass</td> <td style="text-align: center">(m)</td> <td>1.72 ± 0.12 M</td></tr><tr> <td>Radius</td> <td style="text-align: center">(r)</td> <td>4.9 ± 0.1 R</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>5035 ± 44 K</td></tr><tr> <td>Metallicity</td> <td style="text-align: center">[Fe/H]</td> <td>0.14 ± 0.03</td></tr><tr> <td>Age</td> <td style="text-align: center"></td> <td>2 ± 0.5 Gyr</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>1.19 ± 0.03 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.041 ± 0.037</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>356 ± 2.6 d</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>2.3 ± 0.2 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>2010-03-17</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Howard et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Doppler spectroscopy</td></tr><tr> <td colspan="2">Discovery status</td> <td></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 4313 b is an extrasolar planet orbiting the G-type star HD 4313 approximately 447 light years away in the constellation Pisces.[1]

See alsoEdit

ReferencesEdit

External linksEdit

  • HD 4313 b. The Extrasolar Planets Encyclopaedia.

Coordinates: Sky map 00h 45m 40s, +07° 50′ 42″


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