HD 4203 c

A confirmed exoplanet orbiting HD 4203.

Compared with Earth

Mass
About 690 times Earth's mass.
Year
A year here lasts about 18 Earth years.

Planet

Radius
Unknown
Mass
689.7 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
6,700 days
Average distance from its star
6.95 AU

Star

Host star
HD 4203
Spectral class
G — sun-like
Surface temperature
5,582 K
Radius
1.498 × Sun
Mass
0.99 × Sun
Age
Unknown

System

Distance from Earth
265.4 light-years (81.38 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2014
Method
Radial Velocity
Facility
W. M. Keck Observatory

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