The K2-198 System
K2-198 is a planetary system in the constellation Virgo hosting 3 confirmed exoplanets, about 361 light-years from Earth.
Size Comparison: The Planets of K2-198
K2-198: Star and Habitable Zone
K2-198
- Surface temperature
- 5,213 K (Sun: 5,772 K)
- Mass
- 0.80 M☉
- Radius
- 0.76 R☉
Habitable zone of K2-198: 0.478–1.145 AU (conservative: 0.605–1.086 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 K2-198 System
Discovery History
The first planet found here, K2-198 b, was discovered in 2018 using the transit method. The most recent addition, K2-198 d, followed in 2019.
Frequently Asked Questions About K2-198
How many planets does K2-198 have?
K2-198 has 3 confirmed exoplanets. More may await discovery.
Are any planets in the K2-198 system habitable?
None of the known planets in K2-198 orbit within the star's habitable zone.
How far away is K2-198?
K2-198 is about 361 light-years from Earth in the constellation Virgo.
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