WASP-17 b

A confirmed exoplanet orbiting WASP-17.

Compared with Earth

Size
About 21 times Earth's width.
Mass
About 248 times Earth's mass.
Year
A year here lasts about 3.7 Earth days.

Planet

Radius
20.96 × Earth
Mass
247.9 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
3.735 days
Average distance from its star
Unknown

Star

Host star
WASP-17
Spectral class
F — yellow-white
Surface temperature
6,550 K
Radius
1.49 × Sun
Mass
2.28 × Sun
Age
Unknown

System

Distance from Earth
1,324 light-years (405.9 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2009
Method
Transit
Facility
SuperWASP

Data from the NASA Exoplanet Archive, synced October 14, 2026.