flash animation

Distance to Cepheids

Given a graph of various Cepheid light curves (Cet, RT Mus, S Nor), the student is asked to use the period and apparent magnitude of the star in combination with a graph of period versus absolute magnitude for Cepheid variables in order to determine the distance to the star.

keywords: Cepheid, light curve, period, apparent magnitude, absolute magnitude, distance, Cet, RT Mus, S Nor

swf file: ca_milkyway_cepheiddistance.swf