TOI-178 e

A confirmed exoplanet orbiting TOI-178.

Compared with Earth

Size
About 2.3 times Earth's width.
Mass
About 3.5 times Earth's mass.
Year
A year here lasts about 10 Earth days.

Planet

Radius
2.301 × Earth
Mass
3.48 × Earth
Density
1.582 g/cm³
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
9.963 days
Average distance from its star
Unknown

Star

Host star
TOI-178
Spectral class
K — orange dwarf
Surface temperature
4,316 K
Radius
0.662 × Sun
Mass
0.647 × Sun
Age
6 billion years

System

Distance from Earth
204.5 light-years (62.7 parsecs)
Stars in system
1
Known planets
6

Discovery

Year
2021
Method
Transit
Facility
Transiting Exoplanet Survey Satellite (TESS)

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