Discovery[1] | |
---|---|
Discovered by | Khalid Barkaoui et al. |
Discovery date | July 2023 (announced) |
Transit method | |
Designations | |
Orbital characteristics[1] | |
0.0676±0.0015 AU | |
Eccentricity | 0.0560+0.0680 −0.0400 |
6.2463345(3) d | |
Inclination | 88.49°+0.78° −0.49° |
Semi-amplitude | 14.8±3.0 m/s |
Star | WASP-193 |
Physical characteristics[1] | |
1.464+0.059 −0.057 RJ | |
Mass | 0.139±0.029 MJ |
Mean density | 0.059+0.015 −0.013 g/cm3 |
Temperature | 1254±31 K (981 °C; 1,798 °F, equilibrium) |
WASP-193b is a hot, transiting gas giant planet located approximately 1,232 light-years (378 pc) away[4] in the constellation of Hydra, orbiting the F-type star WASP-193. Its discovery was made by the WASP-South transit survey and announced in 2023. The planet is extremely bloated, with a radius nearly 50% larger than Jupiter, despite having only 14% of its mass. This places its density at 0.059 g/cm3, the second lowest of any known exoplanet as of May 2024 after Kepler-51d, and comparable to that of cotton candy (about 0.05 g/cm3).
Barkaoui2024
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