HD 109749 b

A confirmed exoplanet orbiting HD 109749.

Compared with Earth

Mass
About 86 times Earth's mass.
Year
A year here lasts about 5.2 Earth days.

Planet

Radius
Unknown
Mass
85.81 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
5.24 days
Average distance from its star
0.0615 AU

Star

Host star
HD 109749
Spectral class
G — sun-like
Surface temperature
5,824 K
Radius
1.22 × Sun
Mass
1.13 × Sun
Age
3.3 billion years

System

Distance from Earth
205.7 light-years (63.08 parsecs)
Stars in system
2
Known planets
1

Discovery

Year
2005
Method
Radial Velocity
Facility
W. M. Keck Observatory

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