HR 5183 b

A confirmed exoplanet orbiting HR 5183.

Compared with Earth

Mass
About 1,027 times Earth's mass.
Temperature
About -102 °C (-152 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 74 Earth years.

Planet

Radius
Unknown
Mass
1,027 × Earth
Density
Unknown
Equilibrium temperature
171 K
Starlight received
Unknown
Orbital period
27,000 days
Average distance from its star
18 AU

Star

Host star
HR 5183
Spectral class
G — sun-like
Surface temperature
5,794 K
Radius
1.53 × Sun
Mass
1.07 × Sun
Age
7.7 billion years

System

Distance from Earth
102.6 light-years (31.46 parsecs)
Stars in system
2
Known planets
1

Discovery

Year
2019
Method
Radial Velocity
Facility
Multiple Observatories

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