The K2-43 System
K2-43 is a planetary system in the constellation Leo hosting 2 confirmed exoplanets, about 595 light-years from Earth.
Size Comparison: The Planets of K2-43
K2-43: Star and Habitable Zone
K2-43
- Surface temperature
- 3,841 K (Sun: 5,772 K)
- Mass
- 0.57 M☉
- Radius
- 0.54 R☉
Habitable zone of K2-43: 0.195–0.497 AU (conservative: 0.247–0.471 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 K2-43 System
Discovery History
The first planet found here, K2-43 b, was discovered in 2016 using the transit method. The most recent addition, K2-43 c, followed in 2019.
Frequently Asked Questions About K2-43
How many planets does K2-43 have?
K2-43 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the K2-43 system habitable?
None of the known planets in K2-43 orbit within the star's habitable zone.
How far away is K2-43?
K2-43 is about 595 light-years from Earth in the constellation Leo.
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