Terbium

Terbium bears restricted astronomical significance due to its relatively low abundance and challenges associated with detection within cosmic realms. Part of the lanthanide group, terbium emerges during rapid neutron capture (r-process) events within stars, notably during occurrences such as supernovae and neutron star mergers. Despite its status as a relatively less abundant element in the cosmic landscape when compared to more prevalent counterparts, the theoretical observability of terbium's spectral lines across certain wavelengths, potentially including segments of the ultraviolet spectrum, presents hurdles in its detection and comprehensive study within cosmic environments. Due to its scarcity and limited presence, the detection or observation of terbium in interstellar space or within stars poses exceptional challenges, resulting in minimal or undetectable contributions to observed chemical compositions in cosmic domains.