K2-77 b
A confirmed exoplanet orbiting K2-77.
Compared with Earth
- Size
- About 2.5 times Earth's width.
- Temperature
- About 533 °C (991 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 8.2 Earth days.
Planet
- Radius
- 2.5 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 806 K
- Starlight received
- Unknown
- Orbital period
- 8.2 days
- Average distance from its star
- 0.0753 AU
Star
- Host star
- K2-77
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,160 K
- Radius
- 0.792 × Sun
- Mass
- 0.847 × Sun
- Age
- 4.7 billion years
System
- Distance from Earth
- 462.3 light-years (141.7 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2016
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.