BD-10°3166 b[1]
Extrasolar planet List of extrasolar planets
Parent star

<tr> <td colspan="2">Star</td> <td>BD-10°3166</td></tr><tr> <td colspan="2">Constellation</td> <td>Crater</td></tr><tr> <td>Right ascension</td> <td style="text-align: center">(α)</td> <td>10h 58m 28.7798s</td></tr><tr> <td>Declination</td> <td style="text-align: center">(δ)</td> <td>−10° 46′ 13.386″</td></tr><tr> <td>Apparent magnitude</td> <td style="text-align: center">(mV)</td> <td>10.08</td></tr><tr><td colspan="2">Distance</td><td>218 ± 32.6 ly
(66.8 ± 10.0 pc)</td></tr><tr><td colspan="2">Spectral type</td> <td>G4V</td></tr>

Orbital elements

<tr><td>Semimajor axis</td><td style="text-align: center">(a)</td> <td>0.0452 ± 0.0026 AU
(6.76 Gm)</td></tr><tr> <td>Periastron</td> <td style="text-align: center">(q)</td> <td>0.0443 AU
(6.63 Gm)</td></tr><tr> <td>Apastron</td> <td style="text-align: center">(Q)</td> <td>0.0461 AU
(6.89 Gm)</td></tr><tr> <td>Eccentricity</td> <td style="text-align: center">(e)</td> <td>0.019 ± 0.023</td></tr><tr><td>Orbital period</td><td style="text-align: center">(P)</td> <td>3.48777 ± 0.00011 d</td></tr><tr><td> </td> <td style="text-align: center"> </td> <td>(83.706 h)</td></tr><tr> <td>Argument of
</td> <td style="text-align: center">(ω)</td> <td>334°</td></tr><tr> <td>Time of periastron</td> <td style="text-align: center">(T0)</td> <td>2,451,171.22 ± 0.69 JD</td></tr><tr> <td>Semi-amplitude</td> <td style="text-align: center">(K)</td> <td>60.9 ± 1.4 m/s</td></tr>

Physical characteristics

<tr><td>Minimum mass</td><td style="text-align: center">(m sin i)</td><td>0.458 ± 0.039 MJ</td></tr>

Discovery information

<tr> <td colspan="2">Discovery date</td> <td>22 April 2000</td></tr><tr> <td colspan="2">Discoverer(s)</td> <td>Butler, Vogt,
Marcy et al.</td></tr><tr> <td colspan="2">Discovery method</td> <td>Radial velocity</td></tr><tr> <td colspan="2">Discovery site</td> <td>California, USA</td></tr><tr> <td colspan="2">Discovery status</td> <td>Published</td></tr>

BD-10°3166 b is an extrasolar planet approximately 218 light-years away in the constellation of Crater. This planet is a so-called "Hot Jupiter," a planet that orbits its parent star in a very close orbit. Distance to the star is less than 1/20th Earth's distance from the Sun. No transits by the planet have been detected, so the planet's orbital plane cannot be exactly aligned with our direction of view.[2]


  1. (2006). Catalog of Nearby Exoplanets. The Astrophysical Journal 646 (1): 505–522.
  2. (2000). Planetary Companions to the Metal-rich Stars BD -10°3166 and HD 52265. The Astrophysical Journal 545 (1): 504–511.

External linksEdit

Coordinates: Sky map 10h 58m 28.7798s, −10° 46′ 13.386″

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