Colour Index (noun) Definition, Meaning & Examples

noun
  1. the difference between the apparent magnitude of a star measured in one standard waveband and in a longer standard waveband, indicating its colour and temperature
  2. the sum of the dark or coloured minerals of a rock, expressed as a percentage of the total minerals
  3. a systematic arrangement of colours according to their hue, saturation, and brightness
Colour Index (noun) Definition, Meaning & Examples

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