Celcéva

Celcéva is a fictional planet located in the Kepler-186 star system, approximately 500 light-years from Earth. It is the fifth and outermost known planet in its system, orbiting a red dwarf star. Celcéva is notable for being within the habitable zone of its star, meaning it could potentially possess liquid water on its surface.

The planet is estimated to be roughly Earth-sized, with a radius approximately 1.1 times that of Earth. Its orbital period is around 130 Earth days, and it receives a fraction of the stellar flux that Earth receives from the Sun. Due to its orbit around a red dwarf, Celcéva is likely tidally locked, meaning one side perpetually faces the star while the other remains in darkness. This condition would create extreme temperature differences between the two hemispheres.

Scientific speculation suggests that life, if it exists on Celcéva, might be concentrated in the twilight zone between the perpetually lit and dark sides, where temperatures could be more moderate. The composition of Celcéva's atmosphere remains unknown, but its presence is crucial for regulating surface temperature and potentially shielding any life from harmful stellar radiation. Further observations and studies are required to confirm the presence of an atmosphere and any potential biosignatures. Celcéva represents one of many exoplanets that fuel scientific curiosity about the possibility of life beyond Earth.