primary mirror
Britishnoun
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.
By combining the four VLT 8.2-metre telescopes at ESO's Paranal Observatory, they can resolve details as if astronomers would employ a telescope with a primary mirror of 200 metres in diameter.
From Science Daily ● Jan. 8, 2024
Combined with the telescope's 6.5m-wide primary mirror and associated optics it takes astonishing pictures.
From BBC ● Aug. 31, 2023
Gold-plated and about as wide as a full-grown African elephant, the telescope’s infrared-tuned primary mirror allows it to probe the atmospheres of exoplanets to a degree never before possible.
From Scientific American ● Jan. 23, 2023
With a primary mirror 21 feet wide, the Webb is seven times as powerful as its predecessor, the Hubble Space Telescope.
From New York Times ● Dec. 27, 2022
Telescopes are also limited by diffraction, because of the finite diameter D of their primary mirror.
From Textbooks ● Aug. 12, 2015
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
