K2-287 b
A confirmed exoplanet orbiting K2-287.
Compared with Earth
- Size
- About 9.5 times Earth's width.
- Mass
- About 100 times Earth's mass.
- Temperature
- About 531 °C (988 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 15 Earth days.
Planet
- Radius
- 9.494 × Earth
- Mass
- 100.1 × Earth
- Density
- Unknown
- Equilibrium temperature
- 804 K
- Starlight received
- Unknown
- Orbital period
- 14.89 days
- Average distance from its star
- 0.1206 AU
Star
- Host star
- K2-287
- Spectral class
- G — sun-like
- Surface temperature
- 5,695 K
- Radius
- 1.07 × Sun
- Mass
- 1.056 × Sun
- Age
- 4.5 billion years
System
- Distance from Earth
- 516.4 light-years (158.3 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.