The K2-201 System
K2-201 is a planetary system in the constellation Sagittarius hosting 2 confirmed exoplanets, about 646 light-years from Earth.
Size Comparison: The Planets of K2-201
K2-201: Star and Habitable Zone
K2-201
- Surface temperature
- 5,507 K (Sun: 5,772 K)
- Mass
- 0.96 M☉
- Radius
- 0.88 R☉
Habitable zone of K2-201: 0.608–1.444 AU (conservative: 0.770–1.369 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 K2-201 System
Discovery History
The first planet found here, K2-201 b, was discovered in 2018 using the transit method.
Frequently Asked Questions About K2-201
How many planets does K2-201 have?
K2-201 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the K2-201 system habitable?
None of the known planets in K2-201 orbit within the star's habitable zone.
How far away is K2-201?
K2-201 is about 646 light-years from Earth in the constellation Sagittarius.
Explore the K2-201 system in the app
Browse, filter and compare 6,000+ exoplanets on iPhone, iPad and Apple Watch — with habitable-zone views, widgets and offline data.
