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.

High-sensitivity observations have discovered objects with extremely high X-ray luminosities.

From Science Daily • Dec. 14, 2025

"This allows us to help explain the extreme luminosities of active galactic nuclei as well as the acceleration of particles to nearly the speed of light."

From Science Daily • Oct. 8, 2025

Suvi Gezari, an astronomer at the Space Telescope Science Institute, says the observations extend the phenomenon of red novae to much lower luminosities and into the regime of planetary engulfments.

From Science Magazine • May 3, 2023

The brutal fury of a system like WR 140 is undeniable, from the incredible luminosities of its stars to the cosmic tsunami of dusty winds they blast away.

From Scientific American • Oct. 25, 2022

These luminosities can then be added together, and they should equal in luminosity the white light with which the comparison was made.

From Colour Measurement and Mixture by Abney, W. de W.