HD 25171 b

A confirmed exoplanet orbiting HD 25171.

Compared with Earth

Mass
About 291 times Earth's mass.
Year
A year here lasts about 4.9 Earth years.

Planet

Radius
Unknown
Mass
290.8 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
1,802 days
Average distance from its star
2.971 AU

Star

Host star
HD 25171
Spectral class
F — yellow-white
Surface temperature
6,125 K
Radius
1.23 × Sun
Mass
1.076 × Sun
Age
4.802 billion years

System

Distance from Earth
181.4 light-years (55.61 parsecs)
Stars in system
2
Known planets
1

Discovery

Year
2010
Method
Radial Velocity
Facility
La Silla Observatory

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