The K2-343 System
K2-343 is a planetary system in the constellation Cancer hosting 2 confirmed exoplanets, about 542 light-years from Earth.
Size Comparison: The Planets of K2-343
K2-343: Star and Habitable Zone
K2-343
- Surface temperature
- 3,804 K (Sun: 5,772 K)
- Mass
- 0.49 M☉
- Radius
- 0.46 R☉
Habitable zone of K2-343: 0.162–0.415 AU (conservative: 0.206–0.393 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 K2-343 System
Discovery History
The first planet found here, K2-343 b, was discovered in 2021 using the transit method.
Frequently Asked Questions About K2-343
How many planets does K2-343 have?
K2-343 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the K2-343 system habitable?
None of the known planets in K2-343 orbit within the star's habitable zone.
How far away is K2-343?
K2-343 is about 542 light-years from Earth in the constellation Cancer.
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