Cepheid variables are vital for measuring the distances of relatively nearby galaxies. What is the probability of finding a cepheid variable star? State ALL your assumptions
Astronomy - PsyDAG, Wednesday, May 1, 2013 at 1:28pm
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Since this is not my area of expertise, I searched Google under the key words "Cepheid variables galaxy distances" to get these possible sources:
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search. Also see http://hanlib.sou.edu/searchtools/.