Kepler-1991 b

A confirmed exoplanet orbiting Kepler-1991.

Compared with Earth

Size
About 1.5 times Earth's width.
Temperature
About 487 °C (908 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
Starlight
About 79 times the starlight Earth gets from the Sun.
Year
A year here lasts about 13 Earth days.

Planet

Radius
1.47 × Earth
Mass
Unknown
Density
Unknown
Equilibrium temperature
760 K
Starlight received
78.79 × Earth
Orbital period
13.26 days
Average distance from its star
0.1065 AU

Star

Host star
Kepler-1991
Spectral class
G — sun-like
Surface temperature
5,478 K
Radius
1.053 × Sun
Mass
0.914 × Sun
Age
Unknown

System

Distance from Earth
2,791 light-years (855.8 parsecs)
Stars in system
1
Known planets
2

Discovery

Year
2023
Method
Transit
Facility
Kepler

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