K2-173 b

A confirmed exoplanet orbiting K2-173.

Compared with Earth

Size
About 1.6 times Earth's width.
Year
A year here lasts about 5.9 Earth days.

Planet

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

Star

Host star
K2-173
Spectral class
G — sun-like
Surface temperature
5,580 K
Radius
0.8432 × Sun
Mass
0.8815 × Sun
Age
Unknown

System

Distance from Earth
745.7 light-years (228.6 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2018
Method
Transit
Facility
K2

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