HD 149026 b

A confirmed exoplanet orbiting HD 149026.

Compared with Earth

Size
About 8.3 times Earth's width.
Mass
About 121 times Earth's mass.
Year
A year here lasts about 2.9 Earth days.

Planet

Radius
8.295 × Earth
Mass
120.8 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
2.876 days
Average distance from its star
Unknown

Star

Host star
HD 149026
Spectral class
F — yellow-white
Surface temperature
6,179 K
Radius
1.41 × Sun
Mass
1.42 × Sun
Age
Unknown

System

Distance from Earth
247.4 light-years (75.86 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2005
Method
Radial Velocity
Facility
Subaru Telescope

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