K2-278 b
A confirmed exoplanet orbiting K2-278.
Compared with Earth
- Size
- About 3 times Earth's width.
- Temperature
- About 1,438 °C (2,620 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 3.3 Earth days.
Planet
- Radius
- 2.98 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 1,711 K
- Starlight received
- Unknown
- Orbital period
- 3.335 days
- Average distance from its star
- 0.0488 AU
Star
- Host star
- K2-278
- Spectral class
- F — yellow-white
- Surface temperature
- 6,747 K
- Radius
- 1.61 × Sun
- Mass
- 1.4 × Sun
- Age
- Unknown
System
- Distance from Earth
- 2,565 light-years (786.4 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.