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HD 147513 b
Extrasolar planet List of extrasolar planets
300px
Artist's conception of HD 147513 b, as a jovian planet.
Parent star

<tr> <td colspan="2">Star</td> <td>HD 147513</td></tr><tr> <td colspan="2">Constellation</td> <td>Scorpius</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>16h 24m 01.2899s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–39° 11′ 34.729″</td></tr><tr><td colspan="2">Distance</td><td>41.96 ly
(12.87 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G5V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>1.32 AU</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.98 AU</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>1.66 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.26 ± 0.05</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>528.4 ± 6.3 d
(1.4467 y)</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>282 ± 9°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,451,123 ± 20 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>29.3 ± 1.8 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>>1.21 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>June 19, 2002</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Mayor et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>Template:Country data France</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</td></tr>

HD 147513 b is an exoplanet approximately 42 light-years away in the constellation of Scorpius. It is at least 21% more massive than Jupiter. But unlike Jupiter, it orbits the star much closer, mean distance being only a third more than Earth's distance from the Sun. Its orbit is also eccentric; at periastron, it is closer to itse star than Earth is from the Sun, whereas at apastron, it is further from its star than Mars to the Sun, finding itself on the outer edge of the habitable zone.[1][2]

ReferencesEdit

  1. HD 147513 b. The Extrasolar Planets Encyclopaedia.
  2. (2004). The CORALIE survey for southern extra-solar planets XII. Orbital solutions for 16 extra-solar planets discovered with CORALIE. Astronomy and Astrophysics 415 (1): 391–402.

Coordinates: Sky map 16h 24m 01.2899s, −39° 11′ 34.729″


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