This glossary covers words that you will come across on this website.
- Cepheid Variable
A Cepheid is a member of a particular class of variable stars. It is usually a Yellow Giant or Supergiant that is pulasting. The relationship between a Cepheid variable's luminosity and variability period is quite precise. Cepheids are viable as the standard candle, meaning that they are the foundation of the Extragalactic Distance Scale.Synonyms: