OPALUS star fact: two of three.
Just as our life takes cycle, so does the star you are wishing upon tonight. When a star comes to its last bits of life, it evolves into what is referred to as "white dwarf". When a star burns up the chemicals it needs to keep shining, it melds a clump that will emit white light until it finally comes to darkness.
Part three of three tomorrow. Happy stargazing!