Red9100 Red9100

14-04-2018
Chemistry

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what is a cepheid variable

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ellamisner ellamisner

14-04-2018

It is a star with a regular cycle of brightness. It allows us to estimate its distance from earth.

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fontsans98 fontsans98

16-11-2018

a variable star having a regular cycle of brightness with a frequency related to its luminosity, so allowing estimation of its distance from the earth.

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