TOI-270 d

A confirmed exoplanet orbiting TOI-270.

Compared with Earth

Size
About 2 times Earth's width.
Mass
About 4.2 times Earth's mass.
Temperature
About 110 °C (230 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 11 Earth days.

Planet

Radius
2 × Earth
Mass
4.2 × Earth
Density
2.9 g/cm³
Equilibrium temperature
383 K
Starlight received
Unknown
Orbital period
11.38 days
Average distance from its star
Unknown

Star

Host star
TOI-270
Spectral class
M — red dwarf
Surface temperature
3,506 K
Radius
0.38 × Sun
Mass
0.386 × Sun
Age
Unknown

System

Distance from Earth
73.32 light-years (22.48 parsecs)
Stars in system
1
Known planets
3

Discovery

Year
2019
Method
Transit
Facility
Transiting Exoplanet Survey Satellite (TESS)

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