TOI-4311 b
A confirmed exoplanet orbiting TOI-4311.
Compared with Earth
- Size
- About 1.4 times Earth's width.
- Mass
- About 4.5 times Earth's mass.
- Temperature
- About 1,391 °C (2,536 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 1,273 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 24 hours.
Planet
- Radius
- 1.376 × Earth
- Mass
- 4.5 × Earth
- Density
- 9.3 g/cm³
- Equilibrium temperature
- 1,664 K
- Starlight received
- 1,273 × Earth
- Orbital period
- 0.9903 days
- Average distance from its star
- 0.01817 AU
Star
- Host star
- TOI-4311
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,063 K
- Radius
- 0.8441 × Sun
- Mass
- 0.816 × Sun
- Age
- 6.6 billion years
System
- Distance from Earth
- 440.3 light-years (135 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2026
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.