If you observe a variable star with a period of 50 days as a yellow, supergiant star, then you most likely have seen a(n) ____.
A) degenerate star
B) RR Lyrae variable star
C) eclipsing binary star
D) Cepheid variable star
E) Type I Pulsar

Question

Quizplus · Accepted Answer

Cepheid variable stars are yellow supergiants with periods ranging from a few days to over 100 days, making a star with a 50-day period fitting this description.

If You Observe a Variable Star with a Period of 50