K2-273 b

A confirmed exoplanet orbiting K2-273.

Compared with Earth

Size
About 3.1 times Earth's width.
Temperature
About 576 °C (1,069 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Year
A year here lasts about 12 Earth days.

Planet

Radius
3.05 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
849 K
Starlight received
Unknown
Orbital period
11.72 days
Average distance from its star
0.0729 AU

Star

Host star
K2-273
Spectral class
K — orange dwarf
Surface temperature
5,161 K
Radius
0.85 × Sun
Mass
0.89 × Sun
Age
Unknown

System

Distance from Earth
1,005 light-years (308.1 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.