Kepler-1721 b

A confirmed exoplanet orbiting Kepler-1721.

Compared with Earth

Size
About 3.1 times Earth's width.
Year
A year here lasts about 4.6 Earth days.

Planet

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

Star

Host star
Kepler-1721
Spectral class
G — sun-like
Surface temperature
5,351 K
Radius
0.796 × Sun
Mass
0.89 × Sun
Age
Unknown

System

Distance from Earth
2,092 light-years (641.4 parsecs)
Stars in system
1
Known planets
1

Discovery

Year
2021
Method
Transit
Facility
Kepler

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