The TOI-4311 System
TOI-4311 is a planetary system in the constellation Fornax hosting 2 confirmed exoplanets, about 440 light-years from Earth.
Size Comparison: The Planets of TOI-4311
TOI-4311: Star and Habitable Zone
TOI-4311
- Spectral type
- K
- Surface temperature
- 5,063 K (Sun: 5,772 K)
- Mass
- 0.82 M☉
- Radius
- 0.84 R☉
- Luminosity
- 0.4220 L☉
- Age
- 6.6 billion years (Sun: 4.6)
Habitable zone of TOI-4311: 0.507–1.223 AU (conservative: 0.643–1.160 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-4311 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| TOI-4311 b | Lava World | 1.0 d | 1.38 R⊕ | — | 2026 |
| TOI-4311 c | Super Earth | 15 d | 2.47 R⊕ | — | 2026 |
Discovery History
The first planet found here, TOI-4311 b, was discovered in 2026 using the transit method.
- 2026 — TOI-4311 b (Transit)
- 2026 — TOI-4311 c (Transit)
Frequently Asked Questions About TOI-4311
How many planets does TOI-4311 have?
TOI-4311 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the TOI-4311 system habitable?
None of the known planets in TOI-4311 orbit within the star's habitable zone.
How far away is TOI-4311?
TOI-4311 is about 440 light-years from Earth in the constellation Fornax.
Explore the TOI-4311 system in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
