Kepler-539 b
A confirmed exoplanet orbiting Kepler-539.
Compared with Earth
- Size
- About 8.4 times Earth's width.
- Mass
- About 308 times Earth's mass.
- Temperature
- About 114 °C (238 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 126 Earth days.
Planet
- Radius
- 8.373 × Earth
- Mass
- 308.3 × Earth
- Density
- 2.9 g/cm³
- Equilibrium temperature
- 387.6 K
- Starlight received
- Unknown
- Orbital period
- 125.6 days
- Average distance from its star
- 0.4988 AU
Star
- Host star
- Kepler-539
- Spectral class
- G — sun-like
- Surface temperature
- 5,820 K
- Radius
- 0.952 × Sun
- Mass
- 1.048 × Sun
- Age
- Unknown
System
- Distance from Earth
- 1,002 light-years (307.3 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2016
- Method
- Transit
- Facility
- Kepler
Data from the NASA Exoplanet Archive, synced October 14, 2026.