: relating to or existing in space outside the solar system
deep-sky objects
Examples of deep-sky in a Sentence
Recent Examples on the Web
So that's why comet and deep-sky imagers take sets of at least a dozen images as a normal process, so that the stacking software has a good set to perform its algorithm.
—
Anthony Wood, Space.com, 11 Nov. 2025
Last Quarter Moon The moon reaches last quarter tonight, rising after midnight and offering 10 nights of increasingly dark evening skies — prime conditions for stargazing and deep-sky viewing.
—Jamie Carter, Forbes.com, 8 Sep. 2025
That's when amateur astronomers can get out their telescopes or binoculars to study planets, stars and other deep-sky objects.
—Janet Loehrke, USA Today, 21 Aug. 2025
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Anthony Wood, Space.com, 11 Nov. 2025
Last Quarter Moon The moon reaches last quarter tonight, rising after midnight and offering 10 nights of increasingly dark evening skies — prime conditions for stargazing and deep-sky viewing.
—Jamie Carter, Forbes.com, 8 Sep. 2025
That's when amateur astronomers can get out their telescopes or binoculars to study planets, stars and other deep-sky objects.
—Janet Loehrke, USA Today, 21 Aug. 2025
Cite this Entry
“Deep-sky.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deep-sky. Accessed 5 Dec. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share