The K2-133 System
K2-133 is a planetary system in the constellation Taurus hosting 4 confirmed exoplanets, about 245 light-years from Earth.
Size Comparison: The Planets of K2-133
K2-133: Star and Habitable Zone
K2-133
- Spectral type
- M1.5 V
- Surface temperature
- 3,655 K (Sun: 5,772 K)
- Mass
- 0.46 M☉
- Radius
- 0.46 R☉
- Luminosity
- 0.0332 L☉
Habitable zone of K2-133: 0.149–0.383 AU (conservative: 0.188–0.363 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 4 Planets in the K2-133 System
Discovery History
The first planet found here, K2-133 b, was discovered in 2017 using the transit method. The most recent addition, K2-133 e, followed in 2019.
Frequently Asked Questions About K2-133
How many planets does K2-133 have?
K2-133 has 4 confirmed exoplanets. More may await discovery.
Are any planets in the K2-133 system habitable?
None of the known planets in K2-133 orbit within the star's habitable zone.
How far away is K2-133?
K2-133 is about 245 light-years from Earth in the constellation Taurus.
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