HD 5891 b

A confirmed exoplanet orbiting HD 5891.

Compared with Earth

Mass
About 2,425 times Earth's mass.
Year
A year here lasts about 177 Earth days.

Planet

Radius
Unknown
Mass
2,425 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
177.1 days
Average distance from its star
0.64 AU

Star

Host star
HD 5891
Spectral class
K — orange dwarf
Surface temperature
4,673 K
Radius
10.64 × Sun
Mass
1.93 × Sun
Age
Unknown

System

Distance from Earth
924.7 light-years (283.5 parsecs)
Stars in system
1
Known planets
1

Discovery

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

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