HATS-31 b
A confirmed exoplanet orbiting HATS-31.
Compared with Earth
- Size
- About 18 times Earth's width.
- Mass
- About 280 times Earth's mass.
- Temperature
- About 1,550 °C (2,822 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 3.4 Earth days.
Planet
- Radius
- 18.38 × Earth
- Mass
- 279.7 × Earth
- Density
- 0.243 g/cm³
- Equilibrium temperature
- 1,823 K
- Starlight received
- Unknown
- Orbital period
- 3.378 days
- Average distance from its star
- 0.0478 AU
Star
- Host star
- HATS-31
- Spectral class
- F — yellow-white
- Surface temperature
- 6,050 K
- Radius
- 1.87 × Sun
- Mass
- 1.275 × Sun
- Age
- 4.3 billion years
System
- Distance from Earth
- 2,524 light-years (774 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2016
- Method
- Transit
- Facility
- HATSouth
Data from the NASA Exoplanet Archive, synced October 14, 2026.