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RR Lyrae is a variable star in the constellation Lyra and the prototype of the RR Lyrae class of pulsating variable stars. These stars regularly expand and contract in size and brightness over periods typically lasting less than a day. Because their intrinsic luminosity is predictable, astronomers u...
Mira, designated Omicron Ceti, is a red giant star located approximately 420 light-years away in the constellation Cetus. It serves as the prototype for a class of long-period variable stars, known as Mira variables, which undergo dramatic changes in brightness due to physical pulsations. The star's...
Delta Scuti is an A-type subgiant star located in the constellation Scutum that serves as the prototype for a class of short-period pulsating variable stars. These variables undergo slight, rapid fluctuations in luminosity over periods ranging from a few minutes to a few hours due to radial and non-...
Gamma Doradus is a white-yellow main-sequence star located in the southern constellation of Dorado. It serves as the prototype for the class of Gamma Doradus variable stars, which exhibit brightness fluctuations caused by non-radial gravity-mode pulsations. These types of stars are typically slightl...
SX Phoenicis is a variable star located in the constellation Phoenix and serves as the prototype for the class of SX Phoenicis variables. These stars are Population II pulsating variables that share characteristics with Delta Scuti variables but are typically older and metal-poor. SX Phoenicis itsel...
