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# Flux Ratio

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Equation / Last modified by KurtHeckman on 2017/11/29 13:47
`flux ratio = `

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The **Flux Ratio** calculator computes the ratio of the intensity of light coming from two celestial objects.

**INSTRUCTIONS:** Enter the following:

- (
**f**) This is the intensity of light associated with object 1._{1} - (
**f**) This is the intensity of light associated with object 2._{2}

**Flux Ratio:** The calculator returns the flux ratio.

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#### The Math / Science

The **Flux Ratio ** is the ratio of the intensity of light coming from two celestial objects. Two different objects with light intensities (f_{1} and f_{2}) have a corresponding flux ratio given by this formula:

flux ratio = f_{2}/f_{1}

The light intensities are in candelas (cd)