The RR Lyrae stars all have periods of:
A)less than a second.
B)several minutes.
C)several hours.
D)several days.
E)several weeks.

Name: The RR Lyrae stars all have periods of: A)less than a second. B)several minutes. C)several hours. D)several days. E)several weeks.
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Quizplus · Accepted Answer

RR Lyrae stars are a type of variable star that typically have pulsation periods of several hours, usually in the range of about 0.2 to 1.0 days.

The RR Lyrae Stars All Have Periods Of