TOI-6303 b
A confirmed exoplanet orbiting TOI-6303.
Compared with Earth
- Size
- About 12 times Earth's width.
- Mass
- About 2,493 times Earth's mass.
- Temperature
- About 268 °C (514 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 14 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 9.5 Earth days.
Planet
- Radius
- 11.59 × Earth
- Mass
- 2,493 × Earth
- Density
- 8.82 g/cm³
- Equilibrium temperature
- 541 K
- Starlight received
- 14.28 × Earth
- Orbital period
- 9.485 days
- Average distance from its star
- 0.0761 AU
Star
- Host star
- TOI-6303
- Spectral class
- K — orange dwarf
- Surface temperature
- 3,977 K
- Radius
- 0.609 × Sun
- Mass
- 0.644 × Sun
- Age
- 6.4 billion years
System
- Distance from Earth
- 496.5 light-years (152.2 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2025
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.