An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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long-period variable
  ورتنده‌ی ِ درازدوره  
vartande-ye derâz dowré
Fr.: variable à longue période  

A type of → variable star in which variations in brightness occur over long time-scales of months or years. The term generally refers to → Mira variable types.

See also: → long; → period; → variable.