Assertion: variable | /r/CapableOf | undergo short period pulsations
Facets:
Source sentences:
text: Beta Cephei (β Cep) variables (sometimes called Beta Canis Majoris variables, especially in Europe) undergo short period pulsations in the order of 0.1–0.6 days with an amplitude of 0.01–0.3 magnitudes (1% to 30% change in luminosity).