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 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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