WASP-4b
WASP-4b is an exoplanet, specifically a hot Jupiter, approximately 891 light-years away in the constellation of Phoenix.
Size comparison of WASP-4b with Jupiter. | |
| Discovery | |
|---|---|
| Discovered by | Wide Angle Search for Planets |
| Discovery site | South African Astronomical Observatory |
| Discovery date | October 31, 2007 |
| Transit photometry | |
| Orbital characteristics | |
| 0.02239±0.00084 AU | |
| Eccentricity | <0.0033 |
| 1.338231587(22) d | |
| Inclination | 88.02°±0.69° |
| Semi-amplitude | 232.7+2.5 −2.2 m/s |
| Star | WASP-4 |
| Physical characteristics | |
Mean radius | 1.312±0.045 RJ |
| Mass | 1.164±0.082 MJ |
Mean density | 0.639±0.079 g/cm3 |
| Temperature | 1957±68 K (1,684 °C; 3,063 °F) |
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