Flux Ratio from Magnitudes

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Equation / Last modified by AndrewBudd on 2018/10/12 16:36
`ratio = `
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sspickle.Flux Ratio from Magnitudes
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The Flux Ratio from Magnitudes calculator computes the ratio of the intensity of light coming from two celestial objects based on their magnitudes (m1 and m2).

INSTRUCTIONS: Enter the following:

  • (m1) This is the intensity of light magnitude associated with object 1.
  • (m2) This is the intensity of light magnitude associated with object 2.

Flux Ratio:  The calculator returns the flux ratio.

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The Math / Science

The Flux Ratio from Magnitudes is the ratio of the intensity of light coming from two celestial objects based on their magnitudes.  Two different objects with magnitudes m1 and m2 have a corresponding flux ratio given by this formula:

                       `"flux ratio" = 100^((m_2−m_1) / 5)`

The flux ratio, f2/f1 is the ratio of the intensity of light coming from object 1 compared to the intensity coming from object 2.