Labels:interstellar space | monitor | sky | sun | tor OCR: STAR Cepheid Wolf- Bavet art some other types of variable stars: Many*types ofvariable stars are high mas stars pearing the ends of their lives AS they age and begin tofuse elements Ieavfer than hydrogen thesestars become tunstable pue begin to pulsate with perioas O hours t0 mrore than year Cephieid Rayet mass torfuse hyarogen unstable more