Ledeissäs

Ledeissäs is a fictional celestial body located in the Kepler-186 system, approximately 500 light-years away from Earth. It is the fifth planet from its star, Kepler-186, and is notable for being the outermost known planet in the system. Its size is estimated to be roughly 1.5 times that of Earth, placing it within the range of a super-Earth.

The surface of Ledeissäs is believed to be predominantly rocky, with a significant portion covered by a dense atmosphere. Initial spectroscopic analysis suggests the presence of nitrogen and methane, with trace amounts of other gases. The planet orbits Kepler-186 at a distance that places it within the outer edge of the star's habitable zone, though its precise surface temperature remains a subject of ongoing research. Its orbital period is approximately 130 Earth days.

Due to its distance and the dimness of its host star, direct observation of Ledeissäs is challenging. However, its existence was confirmed through transit photometry, a method that detects the slight dimming of a star as a planet passes in front of it. Future missions are being considered to gather more detailed information about its atmospheric composition and potential for harboring life. The Kepler-186 system itself is of interest due to its similarity to our own solar system, containing planets of various sizes and orbital characteristics.