LP 791-18 b
A confirmed exoplanet orbiting LP 791-18.
Compared with Earth
- Size
- About 1.2 times Earth's width.
- Temperature
- About 291 °C (556 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 24 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 23 hours.
Planet
- Radius
- 1.212 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 564.3 K
- Starlight received
- 24.14 × Earth
- Orbital period
- 0.948 days
- Average distance from its star
- 0.00978 AU
Star
- Host star
- LP 791-18
- Spectral class
- M — red dwarf
- Surface temperature
- 2,960 K
- Radius
- 0.182 × Sun
- Mass
- 0.139 × Sun
- Age
- 0.5 billion years
System
- Distance from Earth
- 86.41 light-years (26.49 parsecs)
- Stars in system
- 1
- Known planets
- 3
Discovery
- Year
- 2019
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.