The K2-240 System
K2-240 is a planetary system in the constellation Libra hosting 2 confirmed exoplanets, about 238 light-years from Earth.
Size Comparison: The Planets of K2-240
K2-240: Star and Habitable Zone
K2-240
- Spectral type
- M0.5 V
- Surface temperature
- 3,810 K (Sun: 5,772 K)
- Mass
- 0.58 M☉
- Radius
- 0.54 R☉
- Luminosity
- 0.0530 L☉
Habitable zone of K2-240: 0.187–0.479 AU (conservative: 0.237–0.454 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 K2-240 System
Discovery History
The first planet found here, K2-240 b, was discovered in 2018 using the transit method.
Frequently Asked Questions About K2-240
How many planets does K2-240 have?
K2-240 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the K2-240 system habitable?
None of the known planets in K2-240 orbit within the star's habitable zone.
How far away is K2-240?
K2-240 is about 238 light-years from Earth in the constellation Libra.
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