The TOI-4156 System
TOI-4156 is a planetary system in the constellation Ursa Minor hosting 2 confirmed exoplanets, about 697 light-years from Earth.
Size Comparison: The Planets of TOI-4156
TOI-4156: Star and Habitable Zone
TOI-4156
- Surface temperature
- 5,972 K (Sun: 5,772 K)
- Radius
- 1.04 R☉
Habitable zone of TOI-4156: 0.824–1.931 AU (conservative: 1.043–1.831 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-4156 System
| Planet | Type | Orbit | Radius | ESI | Discovered |
|---|---|---|---|---|---|
| TOI-4156 b | Mini Neptune | 4.5 d | 2.54 R⊕ | — | 2026 |
| TOI-4156 c | Mini Neptune | 13 d | 2.92 R⊕ | — | 2026 |
Discovery History
The first planet found here, TOI-4156 b, was discovered in 2026 using the transit method.
- 2026 — TOI-4156 b (Transit)
- 2026 — TOI-4156 c (Transit)
Frequently Asked Questions About TOI-4156
How many planets does TOI-4156 have?
TOI-4156 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the TOI-4156 system habitable?
None of the known planets in TOI-4156 orbit within the star's habitable zone.
How far away is TOI-4156?
TOI-4156 is about 697 light-years from Earth in the constellation Ursa Minor.
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