The K2-170 System
K2-170 is a planetary system in the constellation Aquarius hosting 2 confirmed exoplanets, about 1,281 light-years from Earth.
Size Comparison: The Planets of K2-170
K2-170: Star and Habitable Zone
K2-170
- Surface temperature
- 5,748 K (Sun: 5,772 K)
- Mass
- 0.96 M☉
- Radius
- 0.98 R☉
Habitable zone of K2-170: 0.730–1.722 AU (conservative: 0.925–1.633 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 K2-170 System
Discovery History
The first planet found here, K2-170 b, was discovered in 2018 using the transit method.
Frequently Asked Questions About K2-170
How many planets does K2-170 have?
K2-170 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the K2-170 system habitable?
None of the known planets in K2-170 orbit within the star's habitable zone.
How far away is K2-170?
K2-170 is about 1,281 light-years from Earth in the constellation Aquarius.
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