K2-291 b
A confirmed exoplanet orbiting K2-291.
Compared with Earth
- Size
- About 1.6 times Earth's width.
- Mass
- About 6.5 times Earth's mass.
- Starlight
- About 633 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 2.2 Earth days.
Planet
- Radius
- 1.589 × Earth
- Mass
- 6.49 × Earth
- Density
- 8.84 g/cm³
- Equilibrium temperature
- Unknown
- Starlight received
- 633 × Earth
- Orbital period
- 2.225 days
- Average distance from its star
- 0.03261 AU
Star
- Host star
- K2-291
- Spectral class
- G — sun-like
- Surface temperature
- 5,520 K
- Radius
- 0.899 × Sun
- Mass
- 0.934 × Sun
- Age
- 3.72 billion years
System
- Distance from Earth
- 293.7 light-years (90.06 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2019
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.