DanelI189756 DanelI189756

25-10-2022
Mathematics

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A variable star is one whose brightness alternatelyincreases and decreases. For the most visible star, DeltaCephei, the time between periods of maximum brightness isabout 6 days. The average brightness (magnitude) of thestar is 4.0 and its brightness varies from a low of 3.5 to a highof 4.5 magnitudes.

A variable star is one whose brightness alternatelyincreases and decreases For the most visible star DeltaCephei the time between periods of maximum brightness class=

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