W Virginis variables are a subclass ofType II Cepheids which exhibit pulsation periods between 10–20 days,[1] and are ofspectral class F6 – K2.[2][3]
They were first recognized as being distinct from classical Cepheids byWalter Baade in 1942, in a study of Cepheids in theAndromeda Galaxy that proposed that stars in that galaxy were of two populations.[4] The prototype isW Virginis.[1]
| Pulsating |
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| Eruptive |
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| Cataclysmic | |||||||||
| Rotating |
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| Eclipsing | |||||||||
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