C caitybear New member Apr 19, 2009 #1 Consider a Cepheid variable with a period of ten days, a mean radius of about 100(Solar radii), and a radial velocity averaging 15 km/s. What is the change in its radius? DeltaR = R(1)-R(2)?
Consider a Cepheid variable with a period of ten days, a mean radius of about 100(Solar radii), and a radial velocity averaging 15 km/s. What is the change in its radius? DeltaR = R(1)-R(2)?
