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long-period variable

A Dictionary of Astronomy | 1997 | Â© A Dictionary of Astronomy 1997, originally published by Oxford University Press 1997. (Hide copyright information) Copyright

long-period variable (LPV) A red-giant pulsating variable, with a well-defined period in excess of 100 days, otherwise known as a Mira star. The term was previously applied to any late-type variable with a long period, including the types currently known as RV Tauri stars and semiregular variables, but it is now generally restricted to the Mira type.

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"long-period variable." A Dictionary of Astronomy. 1997. Encyclopedia.com. 24 Dec. 2009 <http://www.encyclopedia.com>.

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