NGTS-31 b
A confirmed exoplanet orbiting NGTS-31.
Compared with Earth
- Size
- About 18 times Earth's width.
- Mass
- About 356 times Earth's mass.
- Temperature
- About 1,137 °C (2,078 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 643 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 4.2 Earth days.
Planet
- Radius
- 18.05 × Earth
- Mass
- 356 × Earth
- Density
- 0.3 g/cm³
- Equilibrium temperature
- 1,410 K
- Starlight received
- 643 × Earth
- Orbital period
- 4.163 days
- Average distance from its star
- 0.064 AU
Star
- Host star
- NGTS-31
- Spectral class
- G — sun-like
- Surface temperature
- 5,710 K
- Radius
- 1.7 × Sun
- Mass
- 0.96 × Sun
- Age
- 9.97 billion years
System
- Distance from Earth
- 1,622 light-years (497.4 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2025
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.