Ishterk

Ishterk 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 this system, orbiting its red dwarf star at a distance that places it within the habitable zone. This means Ishterk potentially receives enough stellar radiation to support liquid water on its surface, a key ingredient for life as we understand it.

The planet is estimated to be roughly Earth-sized, with a diameter approximately 1.1 times that of our own. Its mass is also comparable, suggesting a similar rocky composition. Scientists believe Ishterk likely possesses a substantial atmosphere, though its exact composition and density are currently unknown. Early spectral analysis has hinted at the presence of water vapor and possibly oxygen, but further observation is required for confirmation.

Due to its distance, direct observation of Ishterk's surface features is impossible with current technology. However, theoretical models suggest a diverse topography, potentially including oceans, continents, and mountainous regions. The planet's year is significantly longer than Earth's, with one orbit around Kepler-186 taking approximately 130 Earth days. The gravitational influence of other planets in the system is thought to contribute to the stability of Ishterk's orbit. While no definitive signs of life have been detected, Ishterk remains a prime candidate for future astrobiological research.