K2-73 b

A confirmed exoplanet orbiting K2-73.

Compared with Earth

Size
About 2.6 times Earth's width.
Mass
About 9.2 times Earth's mass.
Temperature
About 695 °C (1,283 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 209 times the starlight Earth gets from the Sun.
Year
A year here lasts about 7.5 Earth days.

Planet

Radius
2.58 × Earth
Mass
9.2 × Earth
Density
2.8 g/cm³
Equilibrium temperature
968 K
Starlight received
209 × Earth
Orbital period
7.496 days
Average distance from its star
Unknown

Star

Host star
K2-73
Spectral class
G — sun-like
Surface temperature
5,867 K
Radius
1.058 × Sun
Mass
1.02 × Sun
Age
Unknown

System

Distance from Earth
878 light-years (269.2 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2016
Method
Transit
Facility
K2

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