TOI-5817 b
A confirmed exoplanet orbiting TOI-5817.
Compared with Earth
- Size
- About 3.1 times Earth's width.
- Mass
- About 10 times Earth's mass.
- Temperature
- About 677 °C (1,250 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 16 Earth days.
Planet
- Radius
- 3.08 × Earth
- Mass
- 10.3 × Earth
- Density
- 1.93 g/cm³
- Equilibrium temperature
- 950 K
- Starlight received
- Unknown
- Orbital period
- 15.61 days
- Average distance from its star
- 0.1223 AU
Star
- Host star
- TOI-5817
- Spectral class
- G — sun-like
- Surface temperature
- 5,770 K
- Radius
- 1.427 × Sun
- Mass
- 0.97 × Sun
- Age
- 9.7 billion years
System
- Distance from Earth
- 263.4 light-years (80.75 parsecs)
- Stars in system
- 2
- Known planets
- 1
Discovery
- Year
- 2025
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.