The K2-172 System
K2-172 is a planetary system in the constellation Aquarius hosting 2 confirmed exoplanets, about 815 light-years from Earth.
Size Comparison: The Planets of K2-172
K2-172: Star and Habitable Zone
K2-172
- Surface temperature
- 5,569 K (Sun: 5,772 K)
- Mass
- 0.93 M☉
- Radius
- 0.87 R☉
Habitable zone of K2-172: 0.613–1.453 AU (conservative: 0.777–1.378 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 K2-172 System
Discovery History
The first planet found here, K2-172 b, was discovered in 2018 using the transit method.
Frequently Asked Questions About K2-172
How many planets does K2-172 have?
K2-172 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the K2-172 system habitable?
None of the known planets in K2-172 orbit within the star's habitable zone.
How far away is K2-172?
K2-172 is about 815 light-years from Earth in the constellation Aquarius.
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