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HD 9446 c
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 9446</td></tr><tr> <td colspan="2">Constellation</td> <td>Triangulum</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>01h 33m 20s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+29° 15′ 55″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>8.35</td></tr><tr><td colspan="2">Distance</td><td>172 ± 10 ly
(53 ± 3 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 ± 0.10 M</td></tr><tr> <td>Radius</td> <td style="text-align: center">(r)</td> <td>1.00 R</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>5793 ± 22 K</td></tr><tr> <td>Metallicity</td> <td style="text-align: center">[Fe/H]</td> <td>0.09 ± 0.05</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>1.82 ± 0.17 MJ</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.654±0.022 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.06 ± 0.06</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>192.9 ± 0.9 d</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>2010-01-05</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td></td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</td></tr><tr> <td colspan="2">Discovery status</td> <td></td></tr>

HD 9446 c is an exoplanet discovered in 2010 orbiting the star HD 9446 in the constellation Triangulum, 53 parsecs from Earth.[1]

See also Edit

References Edit

Coordinates: Sky map 01h 33m 20s, +29° 15′ 55″ Template:HD 9446


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