: 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
The next new moon is on Oct. 21 and will offer dark skies perfect for photographing the peak of the Orionids, stars and faint deep-sky objects.
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Harry Bennett, Space.com, 30 Sep. 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
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Harry Bennett, Space.com, 30 Sep. 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 27 Oct. 2025.
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