TOI-1203 b
A confirmed exoplanet orbiting TOI-1203.
Compared with Earth
- Size
- About 1.5 times Earth's width.
- Mass
- About 3.5 times Earth's mass.
- Temperature
- About 1,088 °C (1,990 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 572 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 4.2 Earth days.
Planet
- Radius
- 1.52 × Earth
- Mass
- 3.51 × Earth
- Density
- 5.48 g/cm³
- Equilibrium temperature
- 1,361 K
- Starlight received
- 572.2 × Earth
- Orbital period
- 4.157 days
- Average distance from its star
- 0.04869 AU
Star
- Host star
- TOI-1203
- Spectral class
- G — sun-like
- Surface temperature
- 5,737 K
- Radius
- 1.179 × Sun
- Mass
- 0.886 × Sun
- Age
- 12.5 billion years
System
- Distance from Earth
- 212 light-years (64.99 parsecs)
- Stars in system
- 1
- Known planets
- 4
Discovery
- Year
- 2025
- Method
- Radial Velocity
- Facility
- La Silla Observatory
Data from the NASA Exoplanet Archive, synced October 14, 2026.