The TOI-426 System
TOI-426 is a planetary system in the constellation Lepus hosting 2 confirmed exoplanets, about 371 light-years from Earth. One of its planets orbits within the habitable zone, where liquid water could exist on a planetary surface.
Size Comparison: The Planets of TOI-426
Planets without a measured radius are not shown.
TOI-426: Star and Habitable Zone
TOI-426
- Spectral type
- G2 V
- Surface temperature
- 5,750 K (Sun: 5,772 K)
- Mass
- 1.00 M☉
- Radius
- 0.99 R☉
- Luminosity
- 0.9506 L☉
- Age
- 1.6 billion years (Sun: 4.6)
Habitable zone of TOI-426: 0.733–1.728 AU (conservative: 0.928–1.638 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-426 System
Discovery History
The first planet found here, TOI-426 b, was discovered in 2026 using the transit method.
Frequently Asked Questions About TOI-426
How many planets does TOI-426 have?
TOI-426 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the TOI-426 system habitable?
One planet in the system orbits within the habitable zone, where liquid water could exist. Actual habitability depends on atmospheres and composition, which are not yet known.
How far away is TOI-426?
TOI-426 is about 371 light-years from Earth in the constellation Lepus.
Explore the TOI-426 system in the app
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