The K2-18 System is a planetary system located about 124 light-years away from Earth in the constellation Leo. It is known for its exoplanet, K2-18b, which is a super-Earth that orbits within the habitable zone of its star, allowing for the possibility of liquid water. The host star of the K2-18 System is a red dwarf, classified as K2, which is cooler and smaller than our Sun. The system has garnered interest from astronomers due to its potential for hosting life and the study of its atmospheric composition, particularly after the detection of water vapor in the atmosphere of K2-18b.