K2-33 b

A confirmed exoplanet orbiting K2-33.

Compared with Earth

Size
About 5 times Earth's width.
Mass
About 1,176 times Earth's mass.
Year
A year here lasts about 5.4 Earth days.

Planet

Radius
5.04 × Earth
Mass
1,176 × Earth
Density
Unknown
Equilibrium temperature
Unknown
Starlight received
Unknown
Orbital period
5.425 days
Average distance from its star
Unknown

Star

Host star
K2-33
Spectral class
M — red dwarf
Surface temperature
3,540 K
Radius
1.05 × Sun
Mass
0.56 × Sun
Age
0.0093 billion years

System

Distance from Earth
454.2 light-years (139.3 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2016
Method
Transit
Facility
K2

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