TOI-444 b
A confirmed exoplanet orbiting TOI-444.
Compared with Earth
- Size
- About 2.8 times Earth's width.
- Temperature
- About 336 °C (637 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 18 Earth days.
Planet
- Radius
- 2.77 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 609 K
- Starlight received
- Unknown
- Orbital period
- 17.96 days
- Average distance from its star
- 0.133 AU
Star
- Host star
- TOI-444
- Spectral class
- K — orange dwarf
- Surface temperature
- 5,225 K
- Radius
- 0.779 × Sun
- Mass
- 0.96 × Sun
- Age
- 0.57 billion years
System
- Distance from Earth
- 187.2 light-years (57.4 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2023
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.