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HD 155358 c
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 155358</td></tr><tr> <td colspan="2">Constellation</td> <td>Hercules</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>17h 09m 34.6168s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+33° 21′ 21.078″</td></tr><tr><td colspan="2">Distance</td><td>142±4 ly
(43±1 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G0</td></tr><tr> <td>Mass</td> <td style="text-align: center">(m)</td> <td>0.89 M</td></tr><tr> <td>Temperature</td> <td style="text-align: center">(T)</td> <td>5868 K</td></tr><tr> <td>Metallicity</td> <td style="text-align: center">[Fe/H]</td> <td>-0.68</td></tr><tr> <td>Age</td> <td style="text-align: center"></td> <td>11.9 Gyr</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>1.224±0.081 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.176±0.174</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>530.3±27.2 d</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>279±38°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,454,420.3
±79.3 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>14.1±1.6 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>0.504 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>May 10, 2007</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Cochran et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>University of Texas</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</td></tr>

HD 155358 c is an extrasolar planet orbiting the star HD 155358 located 142 light years away in the constellation Hercules. This is a gas giant which orbits at 1.224 AU and takes 530.3 days to orbit HD 155358. This planet orbits in an eccentric orbit. This planet has at least half the mass of Jupiter.

See also Edit

References Edit

External links Edit

Coordinates: Sky map 17h 09m 34.6168s, +33° 21′ 21.078″


es:HD 155358#Sistema planetario

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