What Is The Relationship Between Luminosity And Period Of Variability?
What Is The Relationship Between Luminosity And Period Of Variability? The longer the variability period, the more luminous the Cepheid. Through observations of Cepheid variables, astronomers have determined the distances to other galaxies. They compare the Cepheid variable’s apparent brightness with its intrinsic brightness. What is the relationship between period and luminosity of a Cepheid