Brillevés

Brillevés is a fictional planet located in the Kepler-186 system. It is the fifth and outermost known planet orbiting the red dwarf star Kepler-186, approximately 500 light-years from Earth. Discovered in 2014, Brillevés gained significant attention as it resides within the habitable zone of its star, meaning conditions could potentially allow for liquid water to exist on its surface.

The planet is estimated to be roughly Earth-sized, with a radius approximately 1.1 times that of Earth. Its mass and exact composition are still subjects of scientific study and speculation. Due to the nature of its host star, Kepler-186, Brillevés likely receives less stellar radiation than Earth, and its surface temperature would depend heavily on its atmospheric composition and greenhouse effect. Red dwarf stars are known for their flare activity, which could pose a challenge for life on orbiting planets, and the long-term stability of Brillevés' atmosphere in the face of such flares is an area of ongoing research.

The discovery of Brillevés was a milestone in the search for exoplanets, particularly those that might be capable of supporting life. It is one of several exoplanets discovered around Kepler-186, but its position within the habitable zone makes it a prime candidate for future observational studies aimed at detecting biosignatures. Current technology does not allow for direct imaging or detailed atmospheric analysis of Brillevés, but it remains a significant target for astronomical endeavors.