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HD 83443 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 83443</td></tr><tr> <td colspan="2">Constellation</td> <td>Vela</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>9h 37m 11.828s[1]</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>–43° 16′ 19.94″[1]</td></tr><tr><td colspan="2">Distance</td><td>134 ± 4[1] ly
(41 ± 1[1] pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K0V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.039 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.013 ± 0.013</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>2.98565 ± 0.00003 d</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>11 ± 11°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,451,497.5 ± 0.3 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>56.3 ± 1.4 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>0.38 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>April 15, 2000[2]</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Mayor et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Doppler Spectroscopy</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 83443 b is an extrasolar planet approximately 134 light-years away[1] in the constellation of Vela. It was discovered in 2000 by the Geneva Extrasolar Planet Search Team led by Michel Mayor.[2] It has a minimum mass comparable to Saturn, and its orbit is one of the shortest known, 1/25th that of Earth's. It takes only three days to complete one revolution around the star.[3]

References Edit

  1. 1.0 1.1 1.2 1.3 1.4 (2007). Validation of the new Hipparcos reduction. Astronomy and Astrophysics 474 (2): 653–664.Vizier catalog entry
  2. 2.0 2.1 Script error
  3. (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 09h 37m 11.83s, −43° 16′ 19.94″


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