TOI-1803 b
A confirmed exoplanet orbiting TOI-1803.
Compared with Earth
- Size
- About 3 times Earth's width.
- Mass
- About 10 times Earth's mass.
- Temperature
- About 474 °C (885 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 58 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 6.3 Earth days.
Planet
- Radius
- 2.99 × Earth
- Mass
- 10.32 × Earth
- Density
- 2.15 g/cm³
- Equilibrium temperature
- 747 K
- Starlight received
- 58 × Earth
- Orbital period
- 6.293 days
- Average distance from its star
- 0.06 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.