TOI-3278 b
A confirmed exoplanet orbiting TOI-3278.
Compared with Earth
- Size
- About 14 times Earth's width.
- Mass
- About 95 times Earth's mass.
- Temperature
- About 1,288 °C (2,350 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 1,030 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 3.2 Earth days.
Planet
- Radius
- 13.9 × Earth
- Mass
- 95.35 × Earth
- Density
- 0.21 g/cm³
- Equilibrium temperature
- 1,561 K
- Starlight received
- 1,030 × Earth
- Orbital period
- 3.246 days
- Average distance from its star
- 0.043 AU
Star
- Host star
- TOI-3278
- Spectral class
- G — sun-like
- Surface temperature
- 5,720 K
- Radius
- 1.39 × Sun
- Mass
- 1.04 × Sun
- Age
- 8.9 billion years
System
- Distance from Earth
- 2,951 light-years (904.8 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2026
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.