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Light curve
In astronomy, a light curve is a graph of light intensity 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, cepheid variables and other variables, or aperiodic, like the light curve of a nova, a cataclysmic variable star or a supernova.
The study of the light curve, together with other observations, can yield considerable information about the physical process that produces it or constrain the physical theories about it.
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