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Magnitude vs Radiance - What's the difference?

magnitude | radiance |

As nouns the difference between magnitude and radiance

is that magnitude is (uncountable|countable) the absolute or relative size, extent or importance of something while radiance is the quality of being radiant, shining, bright or splendid.

magnitude

English

Noun

  • (uncountable, countable) The absolute or relative size, extent or importance of something.
  • (countable) An order of magnitude.
  • (mathematics) A number, assigned to something, such that it may be compared to others numerically
  • (mathematics) Of a vector, the norm, most commonly, the two-norm.
  • (astronomy) The apparent brightness of a star (on a negative, logarithmic scale); apparent magnitude
  • (seismology) A measure of the energy released by an earthquake (e.g. on the Richter scale).

    • Derived terms

    * order of magnitude * absolute magnitude * apparent magnitude

    radiance

    English

    Noun

    (wikipedia radiance)
  • the quality of being radiant, shining, bright or splendid
    • Girt with omnipotence, with radiance crowned. — Milton.
  • (physics) the flux of radiation emitted per unit solid angle in a given direction by a unit area of a source