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The prototype of RR Lyrae-type pulsating variable stars in Lyra, widely used as standard candles for measuring distances to globular clusters and the galactic halo.
Omicron Ceti, prototype of long-period Mira-type variable stars, pulsating over a roughly 332-day cycle between naked-eye visibility and telescopic faintness, about 420 light-years away.
Delta Scuti is an A-type pulsating variable that is the prototype of the Delta Scuti class of short-period pulsators widely used in asteroseismology.
Gamma Doradus is the prototype of Gamma Doradus variables, F-type stars that pulsate in high-order gravity modes near the main sequence.
SX Phoenicis is the prototype of SX Phoenicis variables, Population II pulsating stars analogous to Delta Scuti stars and often associated with blue stragglers.
