The TOI-1806 System
TOI-1806 is a planetary system in the constellation Leo Minor hosting 3 confirmed exoplanets, about 181 light-years from Earth.
Size Comparison: The Planets of TOI-1806
TOI-1806: Star and Habitable Zone
TOI-1806
- Surface temperature
- 3,272 K (Sun: 5,772 K)
- Mass
- 0.39 M☉
- Radius
- 0.40 R☉
- Luminosity
- 0.0167 L☉
Habitable zone of TOI-1806: 0.106–0.278 AU (conservative: 0.134–0.263 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 3 Planets in the TOI-1806 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| TOI-1806.01 | Sub Neptune | 15 d | 3.41 R⊕ | — | 2024 |
| TOI-1806 c | Super Earth | 0.5 d | 1.32 R⊕ | — | 2026 |
| TOI-1806 d | Mini Neptune | 8.2 d | 2.88 R⊕ | — | 2026 |
Discovery History
The first planet found here, TOI-1806.01, was discovered in 2024 using the transit method. The most recent addition, TOI-1806 d, followed in 2026.
- 2024 — TOI-1806.01 (Transit)
- 2026 — TOI-1806 c (Transit)
- 2026 — TOI-1806 d (Transit)
Frequently Asked Questions About TOI-1806
How many planets does TOI-1806 have?
TOI-1806 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the TOI-1806 system habitable?
None of the known planets in TOI-1806 orbit within the star's habitable zone.
How far away is TOI-1806?
TOI-1806 is about 181 light-years from Earth in the constellation Leo Minor.
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