The TOI-125 System
TOI-125 is a planetary system in the constellation Hydrus hosting 3 confirmed exoplanets, about 362 light-years from Earth.
Size Comparison: The Planets of TOI-125
TOI-125: Star and Habitable Zone
TOI-125
- Spectral type
- K0 V
- Surface temperature
- 5,320 K (Sun: 5,772 K)
- Mass
- 0.86 M☉
- Radius
- 0.85 R☉
- Luminosity
- 0.5190 L☉
- Age
- 6.8 billion years (Sun: 4.6)
Habitable zone of TOI-125: 0.555–1.326 AU (conservative: 0.703–1.257 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-125 System
Discovery History
The first planet found here, TOI-125 b, was discovered in 2019 using the transit method. The most recent addition, TOI-125 d, followed in 2020.
Frequently Asked Questions About TOI-125
How many planets does TOI-125 have?
TOI-125 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the TOI-125 system habitable?
None of the known planets in TOI-125 orbit within the star's habitable zone.
How far away is TOI-125?
TOI-125 is about 362 light-years from Earth in the constellation Hydrus.
Explore the TOI-125 system in the app
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