description Kepler-186d Overview
Kepler-186d is the third known planet in the Kepler-186 planetary system, which orbits a cool M-type dwarf star. It completes one orbit in about 13.3 days and was identified through the transit method, which detects the slight dimming caused when a planet passes in front of its star. The planet is larger than Earth and lies much closer to its star than the system's outer planet, Kepler-186f, which received attention for its location near the habitable zone.
help Kepler-186d FAQ
What is Kepler-186d?
Kepler-186d is the third known planet in the Kepler-186 system. The system orbits a cool M-type dwarf star.
How long does Kepler-186d take to orbit its star?
Kepler-186d completes one orbit in about 13.3 Earth days. Its short period means it travels relatively close to its host star.
How was Kepler-186d detected?
It was identified through the transit method. This method detects the slight dimming of a star when a planet passes across the star's visible disk.
Is Kepler-186d the potentially habitable planet in its system?
No. Kepler-186f is the better-known potentially habitable planet in the Kepler-186 system. Kepler-186d has a much shorter orbit and is closer to the cool M-dwarf star.
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