TOI-1439 b
A confirmed exoplanet orbiting TOI-1439.
Compared with Earth
- Size
- About 4.2 times Earth's width.
- Mass
- About 39 times Earth's mass.
- Temperature
- About 475 °C (887 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Year
- A year here lasts about 28 Earth days.
Planet
- Radius
- 4.243 × Earth
- Mass
- 38.5 × Earth
- Density
- 2.76 g/cm³
- Equilibrium temperature
- 748.4 K
- Starlight received
- Unknown
- Orbital period
- 27.64 days
- Average distance from its star
- 0.192 AU
Star
- Host star
- TOI-1439
- Spectral class
- G — sun-like
- Surface temperature
- 5,841 K
- Radius
- 1.618 × Sun
- Mass
- 1.231 × Sun
- Age
- 4.6 billion years
System
- Distance from Earth
- 751.2 light-years (230.3 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2024
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.