TOI-209 b

A confirmed exoplanet orbiting TOI-209.

Compared with Earth

Size
About 2.4 times Earth's width.
Year
A year here lasts about 4.4 Earth days.

Planet

Radius
2.395 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
4.379 days
Average distance from its star
Unknown

Star

Host star
TOI-209
Spectral class
K — orange dwarf
Surface temperature
4,807 K
Radius
0.7428 × Sun
Mass
Unknown
Age
Unknown

System

Distance from Earth
369.8 light-years (113.4 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2026
Method
Transit
Facility
Transiting Exoplanet Survey Satellite (TESS)

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