WASP-45 b

A confirmed exoplanet orbiting WASP-45.

Compared with Earth

Size
About 11 times Earth's width.
Mass
About 306 times Earth's mass.
Temperature
About 880 °C (1,616 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 294 times the starlight Earth gets from the Sun.
Year
A year here lasts about 3.1 Earth days.

Planet

Radius
10.6 × Earth
Mass
306.4 × Earth
Density
1.418 g/cm³
Equilibrium temperature
1,153 K
Starlight received
294 × Earth
Orbital period
3.126 days
Average distance from its star
0.03963 AU

Star

Host star
WASP-45
Spectral class
K — orange dwarf
Surface temperature
5,150 K
Radius
0.855 × Sun
Mass
0.85 × Sun
Age
Unknown

System

Distance from Earth
688.8 light-years (211.2 parsecs)
Stars in system
2
Known planets
1

Discovery

Year
2011
Method
Transit
Facility
SuperWASP

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