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period–luminosity–colour relation

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

period–luminosity–colour relation(PLC relation) A relationship between the period and colour of a pulsating variable and its luminosity. It is an extension of the period–luminosity relation that takes differences in colour (i.e. temperature) into account.

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