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light curve

noun, Astronomy.
a graph showing variations in brightness of celestial objects over time.
Origin of light curve
First recorded in 1885-90 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for light curve
Historical Examples
  • Such a diagram is called the star's light curve, and we may read from it that at any time between 5h.

    A Text-Book of Astronomy George C. Comstock
  • Thus the light curve and the spectroscopic velocity curve are very similar in shape, but one is like the other turned upside down.

    Astronomical Curiosities J. Ellard Gore
Contemporary definitions for light curve

a graph showing the variation in the light received over a time period from a variable celestial object, as a star

Usage Note

astronomy's 21st Century Lexicon
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