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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.

"The infrared light curve was the complete opposite of the visible light," Tzanidakis said.

From Science Daily • Mar. 11, 2026

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 • Dec. 4, 2025

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

From Science Daily • Apr. 12, 2024

In the case of a light curve like that of Kepler-1625b, the rate of "false hits" is likely to be around 11 percent.

From Science Daily • Dec. 7, 2023

M. H. E. Lau finds that the short-period variable star δ Cephei varies slightly in colour as well as in light, and that the colour curve is parallel to the light curve.

From Astronomical Curiosities Facts and Fallacies by Gore, J. Ellard