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light curve

American  

noun

Astronomy.
  1. a graph showing variations in brightness of celestial objects over time.


Etymology

Origin of light curve

First recorded in 1885–90

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Spot-Crossing Signal: A change in the transit light curve that happens when a planet moves across a darker, cooler starspot on the star's surface.

From Science Daily

Light Curve: A graph showing how a star's brightness changes over time.

From Science Daily

This allows the researchers to computationally progress the initial 3D structure of a hotspot over time as it orbits the black hole to create a whole light curve.

From Science Daily

"As with other stars orbited by exoplanets, the observed light curve of WASP-39 is flatter than previous models can explain," she adds.

From Science Daily

This is reflected in the light curve as a regularly recurring drop in brightness.

From Science Daily