HD 4313 b

A confirmed exoplanet orbiting HD 4313.

Compared with Earth

Mass
About 612 times Earth's mass.
Year
A year here lasts about 356 Earth days.

Planet

Radius
Unknown
Mass
612.5 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
356.2 days
Average distance from its star
1.157 AU

Star

Host star
HD 4313
Spectral class
K — orange dwarf
Surface temperature
4,943 K
Radius
5.14 × Sun
Mass
1.63 × Sun
Age
Unknown

System

Distance from Earth
444.6 light-years (136.3 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2009
Method
Radial Velocity
Facility
W. M. Keck Observatory

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