HD 99706 b

A confirmed exoplanet orbiting HD 99706.

Compared with Earth

Mass
About 391 times Earth's mass.
Year
A year here lasts about 2.3 Earth years.

Planet

Radius
Unknown
Mass
390.9 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
841 days
Average distance from its star
1.98 AU

Star

Host star
HD 99706
Spectral class
K — orange dwarf
Surface temperature
4,862 K
Radius
5.52 × Sun
Mass
1.46 × Sun
Age
Unknown

System

Distance from Earth
478.1 light-years (146.6 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2011
Method
Radial Velocity
Facility
W. M. Keck Observatory

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