Del

Its story

Delta Scuti gives its name to an entire class of variable stars: the pulsating Delta Scuti family of white or yellow-white giants that beat with periods of hours, contracting and expanding in radial and non-radial oscillations. This is the prototype star, the one that defined the family. At 200 light-years away, in the small constellation of the Shield, its brightness varies softly every four and a half hours, like a cosmic heartbeat.