HATS-40 b
A confirmed exoplanet orbiting HATS-40.
Compared with Earth
- Size
- About 18 times Earth's width.
- Mass
- About 505 times Earth's mass.
- Temperature
- About 1,828 °C (3,322 °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
- 17.71 × Earth
- Mass
- 505.3 × Earth
- Density
- 0.49 g/cm³
- Equilibrium temperature
- 2,101 K
- Starlight received
- Unknown
- Orbital period
- 3.264 days
- Average distance from its star
- 0.04997 AU
Star
- Host star
- HATS-40
- Spectral class
- F — yellow-white
- Surface temperature
- 6,460 K
- Radius
- 2.26 × Sun
- Mass
- 1.561 × Sun
- Age
- 2.07 billion years
System
- Distance from Earth
- 4,378 light-years (1,342 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2018
- Method
- Transit
- Facility
- HATSouth
Data from the NASA Exoplanet Archive, synced October 14, 2026.