Turtia

Turtia 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. Turtia is notable for being the first Earth-sized exoplanet discovered within the habitable zone of its star, a region where liquid water could potentially exist on the planet's surface.

The planet is estimated to be about 1.1 times the radius of Earth and has a similar mass. Its orbital period is approximately 130 Earth days. Due to its orbit around a cooler red dwarf star, Turtia receives less stellar radiation than Earth does from the Sun, but it is positioned at a distance that could allow for temperatures conducive to liquid water, assuming a suitable atmosphere is present.

The discovery of Turtia was made using data from NASA's Kepler Space Telescope. While its existence has been confirmed, detailed information about its atmosphere, composition, and potential for life remains unknown. Further observations and research are needed to understand the characteristics of Turtia and its place in the search for extraterrestrial life. The Kepler-186 system contains four other planets, all of which are closer to the star and are likely too hot to support liquid water.