Potassium
Potassium holds astronomical significance due to its presence and influence in various cosmic realms. While not as prevalent as some primary cosmic elements, potassium remains relatively abundant in the universe, formed through nucleosynthesis processes within stars. Its spectral lines, particularly observable in the optical spectra, serve as valuable tools in astronomical spectroscopic studies, unveiling details about the chemical compositions, temperatures, and densities of stars and interstellar matter. Potassium's existence in the interstellar medium, primarily in atomic form, contributes to our comprehension of the chemical makeup and physical conditions prevailing between stars. Synthesized within stellar interiors across diverse stages of stellar evolution, potassium enriches the cosmos and is dispersed into space through stellar activities, such as stellar winds or supernova explosions.