What are cepheid variables?

1 Answer
Suryin =)
Dec 19, 2015

Cepheid variables (pulsating variable star) are special variable stars.

Explanation:

It changes in both brightness and size. One example of this pulsating variable star is the Polaris. It changes from bright to dim in a four-day cycle.

Pulsating variable star are called Cepheid variables because the first pulsating variable star was seen on the constellation Cepheus.

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