light curve
noun Date: 1890 a graph showing the variation in brightness of a celestial object (as a variable star) over a period of time

New Collegiate Dictionary. 2001.

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  • Light curve — In astronomy, a light curve is a graph of light intensity of a celestial object or region, as a function of time. The light is usually in a particular frequency interval or band.Light curves can be periodic, as in the case of eclipsing binaries,… …   Wikipedia

  • light curve — noun : a curve expressing graphically the fluctuations in light of a variable star or other astronomical body (as a planet or asteroid) * * * Astron. a graph showing variations in brightness of celestial objects over time. [1885 90] * * * light… …   Useful english dictionary

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