![]() Exoplanet WASP-39b artist's concept[1] | |
Discovery | |
---|---|
Discovery site | WASP[2] |
Discovery date | 2011[2] |
Primary transit[2] | |
Orbital characteristics | |
0.0486±0.0005 AU, (7.27±0.1)×106 km | |
Eccentricity | 0[2] |
4.05526[2] d | |
Inclination | 87.83±0.25[2] |
Star | WASP-39[2] |
Physical characteristics | |
1.27±0.04[2] RJ (91000±3000 km) | |
Mass | 0.28±0.03[2] MJ |
Mean density | 0.180 ± 0.040 g/cm3[citation needed] |
WASP-39b, officially named Bocaprins, is a "hot Jupiter" extrasolar planet discovered in February 2011[3] by the WASP project, notable for containing a substantial amount of water in its atmosphere.[1][4][5] In addition WASP-39b was the first exoplanet found to contain carbon dioxide in its atmosphere,[6][7] and likewise for sulfur dioxide.
WASP-39b is in the constellation Virgo, and is about 700 light-years from Earth.[1] As part of the NameExoWorlds campaigns at the 100th anniversary of the IAU, the planet was named Bocaprins, after the beach Boca Prins in the Arikok National Park of Aruba.
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