Hertzsprung Progression · Bump Cepheids
unseel.com · pulsation · 2:1 resonance · light curves
Period 7.0 d
P₂/P₀ 0.52
Phase
Cepheid light curve
Marching bump
Fundamental mode P₀
2nd overtone P₂
Unseel.com · Hertzsprung Progression Unseel.com · The Hertzsprung Progression