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83 Leonis Bb
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>83 Leonis B</td></tr><tr> <td colspan="2">Constellation</td> <td>Leo</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>11h 26m 45.32s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>+3° 0′ 47.18″</td></tr><tr><td colspan="2">Distance</td><td>57.61 ly
(17.67 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>K2V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.12186 ± 0.00002[1] AU</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.13 ± 0.07[1]</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>17.054 ± 0.003[1] d</td></tr><tr> <td>Argument of
periastron
</td> <td style="text-align: center">(ω)</td> <td>196 ± 32[1]°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,450,449 ± 2[1] JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>7.9 ± 0.6[1] m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>0.087 ± 0.006[1] MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>25 January 2005</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Marcy,
Butler,
Vogt 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 United States</td></tr><tr> <td colspan="2">Discovery status</td> <td>Confirmed</td></tr>

Other designations
HD 99492 b

<tr style="background-color: #A0B0FF;"><td align=center colspan=3>Database references</td></tr><tr valign=baseline><td colspan=2>Extrasolar Planets
Encyclopaedia
</td><td>data</td></tr><tr><td colspan=2>SIMBAD</td><td>data</td></tr>

File:83 Leonis Bb.jpg

83 Leonis Bb, also catalogued as HD 99492 b or abbreviated 83 Leo Bb, is an extrasolar planet approximately 58 light-years away in the constellation of Leo (the Lion). The planet was discovered in January 2005 by the California and Carnegie Planet Search team, who use the Doppler spectroscopy method to detect planets.[2] It orbits in a close orbit around the star, completing one orbit in about 17 days.[1]

References Edit

  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Stefano Meschiari, Gregory Laughlin, Steven S. Vogt, R. Paul Butler, Eugenio J. Rivera, Nader Haghighipour, Peter Jalowiczor (2011). The Lick-Carnegie Survey: Four New Exoplanet Candidates. The Astrophysical Journal 727 (2): 117.
  2. Marcy, Geoffrey W. (2005). Five New Extrasolar Planets. The Astrophysical Journal 619 (1): 570–584.

External links Edit


Coordinates: Sky map 11h 26m 45.32s, +03° 00′ 47.18″ Template:Nearest bright star systems


de:83 Leonis Bb

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