A central phenomenon exhibited by these objects is explained by the Kappa mechanism.
A central phenomenon exhibited by these objects is explained by the Kappa mechanism. Classification within these objects is determined by the member's metallicity. Measurements done on these objects help calculate Hubble's constant. W-Virginis stars are part of the Type II class of these stars. These stars are generally found in the instability strip of the Hertzsprung-Russell diagram. Along with R R Lyrae stars, these stars are often used as standard candles to measure astronomical distances. A notable example of one of these is Polaris, which has fluctuating luminosity values. For 10 points, name these stars often used as reliable standard candles in measuring astronomical distances.
A central phenomenon exhibited by these objects is explained by the Kappa mechanism.
Cepheid Variable Star [accept variable stars until "type II," prompt on it thereafter]