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HD 82943 b
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>HD 82943</td></tr><tr> <td colspan="2">Constellation</td> <td>Hydra</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>09h 34m 50.736s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−12° 07′ 46.365″</td></tr><tr><td colspan="2">Distance</td><td>89.56 ly
(27.46 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G0V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>1.19 AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.219</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>441.2 d</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>284°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>1373.1 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>59.3 ± 5.2 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>1.75 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>April 15, 2000[1]</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Mayor, Udry 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>Confirmed</td></tr>

HD 82943 b is an extrasolar planet approximately 89 light-years away in the constellation of Hydra. The planet was announced in 2000 by the Geneva Extrasolar Planet Search Team.[1] The planet is the outermost planet of two.[2]

See also Edit

References Edit

External links Edit


Coordinates: Sky map 09h 34m 50.736s, −12° 07′ 46.365″


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