The LkCa 15 System
2 planets
Taurus
LkCa 15 is a planetary system in the constellation Taurus hosting 2 confirmed exoplanets, about 516 light-years from Earth.
LkCa 15: Star and Habitable Zone
LkCa 15
- Surface temperature
- 4,194 K (Sun: 5,772 K)
- Radius
- 1.61 R☉
Too hot
Optimistic habitable zone
Conservative habitable zone
Too cold
Habitable zone of LkCa 15: 0.684–1.714 AU (conservative: 0.866–1.625 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 LkCa 15 System
Discovery History
The first planet found here, LkCa 15 b, was discovered in 2015 using the imaging method.
Frequently Asked Questions About LkCa 15
How many planets does LkCa 15 have?
LkCa 15 has 2 confirmed exoplanets. More may await discovery.
Are any planets in the LkCa 15 system habitable?
None of the known planets in LkCa 15 orbit within the star's habitable zone.
How far away is LkCa 15?
LkCa 15 is about 516 light-years from Earth in the constellation Taurus.