Roilänion

Roilänion is a fictional planet located in the Kepler-186 system. It is the fifth and outermost planet in this system, orbiting its star, Kepler-186, at a distance that places it within the habitable zone. This positioning suggests that conditions on Roilänion might be conducive to the presence of liquid water on its surface, a key ingredient for life as understood by terrestrial biology.

The planet is believed to be roughly Earth-sized, with a radius and mass comparable to our own world. Its atmosphere is thought to be composed primarily of nitrogen and oxygen, with trace amounts of other gases. Surface observations, though limited, indicate a varied terrain featuring large oceans, continents, and mountain ranges. Evidence also points to the existence of a magnetic field, which would offer protection from harmful stellar radiation.

Roilänion's star, Kepler-186, is a red dwarf, meaning it is cooler and dimmer than our Sun. This has implications for the planet's climate, potentially leading to a dimmer, more subdued light environment compared to Earth. The orbital period of Roilänion around Kepler-186 is approximately 130 Earth days. While the presence of life is purely speculative, the combination of its size, location in the habitable zone, and potential atmospheric composition makes Roilänion a subject of considerable interest in exoplanetary studies. Further observations are needed to confirm its properties and assess its potential for harboring life.