K-dwarfs, or K-type main-sequence stars, are a class of stars characterized by their orange hue and moderate temperature, typically ranging from 3,900 to 5,200 Kelvin. They are smaller and cooler than G-type stars like our Sun, making them less luminous. K-dwarfs are known for their long lifespans, often lasting tens of billions of years, which allows them to host stable planetary systems. These stars are often considered good candidates for the search for extraterrestrial life due to their longevity and stable energy output. Many exoplanets have been discovered orbiting K-dwarfs, providing valuable insights into the potential for life beyond Earth.