TOI-178 d
A confirmed exoplanet orbiting TOI-178.
Compared with Earth
- Size
- About 2.7 times Earth's width.
- Mass
- About 5.2 times Earth's mass.
- Year
- A year here lasts about 6.6 Earth days.
Planet
- Radius
- 2.695 × Earth
- Mass
- 5.2 × Earth
- Density
- 1.461 g/cm³
- Equilibrium temperature
- Unknown
- Starlight received
- Unknown
- Orbital period
- 6.558 days
- Average distance from its star
- Unknown
Star
- Host star
- TOI-178
- Spectral class
- K — orange dwarf
- Surface temperature
- 4,316 K
- Radius
- 0.662 × Sun
- Mass
- 0.647 × Sun
- Age
- 6 billion years
System
- Distance from Earth
- 204.5 light-years (62.7 parsecs)
- Stars in system
- 1
- Known planets
- 6
Discovery
- Year
- 2021
- Method
- Transit
- Facility
- Transiting Exoplanet Survey Satellite (TESS)
Data from the NASA Exoplanet Archive, synced October 14, 2026.