Cerium

Cerium assumes astronomical significance primarily concerning nucleosynthesis processes and its implications for comprehending the chemical composition of cosmic entities. As part of the lanthanide group of elements, cerium is formed during rapid neutron capture (r-process) events within stars, such as supernovae and neutron star mergers. Despite being relatively less abundant in the universe compared to more prevalent elements, cerium's spectral lines potentially span various wavelengths, including the ultraviolet, visible, and infrared spectra, aiding astronomers in its detection and analysis within cosmic environments.