K2-261 b
A confirmed exoplanet orbiting K2-261.
Compared with Earth
- Size
- About 9.3 times Earth's width.
- Mass
- About 69 times Earth's mass.
- Temperature
- About 763 °C (1,405 °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
- 9.27 × Earth
- Mass
- 68.97 × Earth
- Density
- 0.473 g/cm³
- Equilibrium temperature
- 1,036 K
- Starlight received
- Unknown
- Orbital period
- 11.63 days
- Average distance from its star
- 0.1086 AU
Star
- Host star
- K2-261
- Spectral class
- G — sun-like
- Surface temperature
- 5,490 K
- Radius
- 1.663 × Sun
- Mass
- 1.107 × Sun
- Age
- 8.8 billion years
System
- Distance from Earth
- 695.6 light-years (213.3 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.