TOI-1266 c

A confirmed exoplanet orbiting TOI-1266.

Compared with Earth

Size
About 2 times Earth's width.
Mass
About 3.2 times Earth's mass.
Temperature
About 73 °C (163 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 19 Earth days.

Planet

Radius
1.98 × Earth
Mass
3.17 × Earth
Density
2.25 g/cm³
Equilibrium temperature
346 K
Starlight received
Unknown
Orbital period
18.8 days
Average distance from its star
0.105 AU

Star

Host star
TOI-1266
Spectral class
M — red dwarf
Surface temperature
3,563 K
Radius
0.4232 × Sun
Mass
0.437 × Sun
Age
4.6 billion years

System

Distance from Earth
117.5 light-years (36.01 parsecs)
Stars in system
1
Known planets
3

Discovery

Year
2020
Method
Transit
Facility
Transiting Exoplanet Survey Satellite (TESS)

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