TOI-1803 c
A confirmed exoplanet orbiting TOI-1803.
Compared with Earth
- Size
- About 4.3 times Earth's width.
- Mass
- About 8 times Earth's mass.
- Temperature
- About 315 °C (599 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 22 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 13 Earth days.
Planet
- Radius
- 4.29 × Earth
- Mass
- 8 × Earth
- Density
- 0.419 g/cm³
- Equilibrium temperature
- 588 K
- Starlight received
- 22 × Earth
- Orbital period
- 12.89 days
- Average distance from its star
- 0.097 AU
Star
- Host star
- TOI-1803
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,687 K
- Radius
- 0.715 × Sun
- Mass
- 0.756 × Sun
- Age
- 1.4 billion years
System
- Distance from Earth
- 388.9 light-years (119.2 parsecs)
- Stars in system
- 1
- Known planets
- 2
Discovery
- Year
- 2025
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.