TOI-1789 b
A confirmed exoplanet orbiting TOI-1789.
Compared with Earth
- Size
- About 16 times Earth's width.
- Mass
- About 222 times Earth's mass.
- Temperature
- About 1,654 °C (3,009 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 2,300 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 3.2 Earth days.
Planet
- Radius
- 16.14 × Earth
- Mass
- 222.5 × Earth
- Density
- 0.28 g/cm³
- Equilibrium temperature
- 1,927 K
- Starlight received
- 2,300 × Earth
- Orbital period
- 3.209 days
- Average distance from its star
- 0.04882 AU
Star
- Host star
- TOI-1789
- Spectral class
- G — sun-like
- Surface temperature
- 5,991 K
- Radius
- 2.168 × Sun
- Mass
- 1.507 × Sun
- Age
- 2.73 billion years
System
- Distance from Earth
- 747.1 light-years (229.1 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2021
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.