HD 211403 b

A confirmed exoplanet orbiting HD 211403.

Compared with Earth

Mass
About 1,761 times Earth's mass.
Temperature
About 107 °C (224 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 3.4 times the starlight Earth gets from the Sun.
Year
A year here lasts about 224 Earth days.

Planet

Radius
Unknown
Mass
1,761 × Earth
Density
Unknown
Equilibrium temperature
380 K
Starlight received
3.44 × Earth
Orbital period
223.8 days
Average distance from its star
0.768 AU

Star

Host star
HD 211403
Spectral class
F — yellow-white
Surface temperature
6,273 K
Radius
1.206 × Sun
Mass
1.2 × Sun
Age
Unknown

System

Distance from Earth
271 light-years (83.09 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2021
Method
Radial Velocity
Facility
Haute-Provence Observatory

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