Cepheid — synonyms, definition

1. cepheid (Noun)

1 synonym
cepheid variable
1 definition

cepheid (Noun) — (astronomy) a radially pulsating (expanding and contracting) variable star with a regular period, having a known relationship between period and intrinsic luminosity; measurements of the period and observed brightness allow the distance to be inferred. ex. "The distance ladder was built up over several stages first using parallax measurements and then cepheids"

2 types of
variable variable star