HD 143361 b

A confirmed exoplanet orbiting HD 143361.

Compared with Earth

Mass
About 1,123 times Earth's mass.
Year
A year here lasts about 2.8 Earth years.

Planet

Radius
Unknown
Mass
1,123 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
1,039 days
Average distance from its star
1.988 AU

Star

Host star
HD 143361
Spectral class
G — sun-like
Surface temperature
5,507 K
Radius
0.916 × Sun
Mass
0.968 × Sun
Age
2.942 billion years

System

Distance from Earth
223.5 light-years (68.51 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2008
Method
Radial Velocity
Facility
Las Campanas Observatory

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