A cepheid variable star has a period of 4 days. What is the luminosity in solar units?
Owen AtkinsonAs per attached graph the result for 4 days will be 1000 suns luminosity.
Image courtesy of wdx cxtc edu cn.
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Ariana AcostaA period-luminosity relationship unique to Cepheid variables, the star's apparent magnitude, and its distance from Earth are all necessary pieces of information that you would need to obtain in order to calculate the luminosity of a Cepheid variable star in solar units.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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