Pulsating stars swell and shrink, affecting their brightness and spectrum. Pulsations are generally split into: radial, where the entire star expands and shrinks as a whole; and non-radial, where one part of the star expands while another part shrinks.
Pulsating stars swell and shrink, affecting their brightness and spectrum. Pulsations are generally split into: radi:al, w.here the entire star expands and shrinks as a whole; and non-radial, where one part of the star expands while another part shrinks.