HD 99283 b

A confirmed exoplanet orbiting HD 99283.

Compared with Earth

Mass
About 308 times Earth's mass.
Year
A year here lasts about 310 Earth days.

Planet

Radius
Unknown
Mass
308.3 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
310.4 days
Average distance from its star
1.08 AU

Star

Host star
HD 99283
Spectral class
K — orange dwarf
Surface temperature
4,886 K
Radius
11.21 × Sun
Mass
1.76 × Sun
Age
Unknown

System

Distance from Earth
362.3 light-years (111.1 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2021
Method
Radial Velocity
Facility
Okayama Astrophysical Observatory

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