WASP-39b
WASP-39b, officially named Bocaprins, is a "hot Jupiter" extrasolar planet discovered in February 2011 by the WASP project, notable for containing a substantial amount of water in its atmosphere. In addition WASP-39b was the first exoplanet found to contain carbon dioxide in its atmosphere, and likewise for sulfur dioxide.
Exoplanet WASP-39b artist's concept | |
| Discovery | |
|---|---|
| Discovery site | WASP |
| Discovery date | 2011 |
| Primary transit | |
| Orbital characteristics | |
| 0.0486±0.0005 AU, (7.27±0.1)×106 km | |
| Eccentricity | 0 |
| 4.05526 d | |
| Inclination | 87.83±0.25 |
| Star | WASP-39 |
| Physical characteristics | |
Mean radius | 1.27±0.04 RJ (91000±3000 km) |
| Mass | 0.28±0.03 MJ |
Mean density | 180±40 kg m−3 |
WASP-39b is in the constellation Virgo, and is about 700 light-years from Earth. 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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