The TOI-791 System
TOI-791 is a planetary system in the constellation Volans hosting 2 confirmed exoplanets, about 1,113 light-years from Earth.
Size Comparison: The Planets of TOI-791
TOI-791: Star and Habitable Zone
TOI-791
- Spectral type
- F7
- Surface temperature
- 6,294 K (Sun: 5,772 K)
- Mass
- 1.28 M☉
- Radius
- 1.47 R☉
Habitable zone of TOI-791: 1.272–2.963 AU (conservative: 1.611–2.809 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
All 2 Planets in the TOI-791 System
Discovery History
The first planet found here, TOI-791 b, was discovered in 2026 using the transit method.
Frequently Asked Questions About TOI-791
How many planets does TOI-791 have?
TOI-791 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the TOI-791 system habitable?
None of the known planets in TOI-791 orbit within the star's habitable zone.
How far away is TOI-791?
TOI-791 is about 1,113 light-years from Earth in the constellation Volans.
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