WASP-59
Star in the constellation Pegasus
WASP-59 is a K-type main-sequence star about 379 light-years away in the constellation Pegasus. The star's age is essentially unconstrained by observations. WASP-59 is slightly depleted in heavy elements, having 70% of the solar abundance of iron. The star produces extremely low levels of ultraviolet light, indicating an absence of flare activity.
A multiplicity survey in 2015 did not detect any stellar companions to WASP-59.
01Planetary system
In 2012 a transiting hot Jupiter planet, WASP-59b, was detected on a tight, mildly eccentric orbit.
Its equilibrium temperature is 670±35 K. The planet is unusually dense for a gas giant, representing an outlier on the mass-radius diagram.
| Companion (in order from star) |
Mass | Semimajor axis (AU) |
Orbital period (days) |
Eccentricity | Inclination (°) |
Radius |
|---|---|---|---|---|---|---|
| b | 0.857+0.046 −0.047 MJ |
0.0697±0.0011 | 7.919585±0.000010 | 0.101+0.046 −0.048 |
89.27±0.52 | 0.775±0.068 RJ |
Sources and credits
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