HD 66428 c

A confirmed exoplanet orbiting HD 66428.

Compared with Earth

Mass
About 561 times Earth's mass.
Year
A year here lasts about 29 Earth years.

Planet

Radius
Unknown
Mass
560.6 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
10,480 days
Average distance from its star
9.408 AU

Star

Host star
HD 66428
Spectral class
Unknown
Surface temperature
Unknown
Radius
Unknown
Mass
1.01 × Sun
Age
Unknown

System

Distance from Earth
173.8 light-years (53.28 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2021
Method
Radial Velocity
Facility
Multiple Observatories

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