sunspot
noun
sun·spot
ˈsən-ˌspät 
: any of the dark spots that appear at times on the sun's surface and are usually visible only through a telescope
Examples of sunspot in a Sentence
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Scientists may see more space weather activity between December 1 and December 5, NOAA said, as the sun's newly emerging sunspot region rotates to face the Earth.
—
Kerry Breen, CBS News, 2 Dec. 2025
There are brighter, hotter regions on the surface called faculae, and cooler darker ones similar to sunspots.
—Jeffrey Kluger, Time, 1 Dec. 2025
Every day for the next two months, the rover will image the sun with its Mastcam-Z cameras, capturing crucial information about sunspots and other large features that can give clues to solar activity.
—Claire Cameron, Scientific American, 28 Nov. 2025
They're often associated with solar flares — intense blasts of radiation — and occur near sunspots, which are areas of strong magnetic fields on the solar surface.
—Kenna Hughes-Castleberry, Space.com, 14 Nov. 2025
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Kerry Breen, CBS News, 2 Dec. 2025
There are brighter, hotter regions on the surface called faculae, and cooler darker ones similar to sunspots.
—Jeffrey Kluger, Time, 1 Dec. 2025
Every day for the next two months, the rover will image the sun with its Mastcam-Z cameras, capturing crucial information about sunspots and other large features that can give clues to solar activity.
—Claire Cameron, Scientific American, 28 Nov. 2025
They're often associated with solar flares — intense blasts of radiation — and occur near sunspots, which are areas of strong magnetic fields on the solar surface.
—Kenna Hughes-Castleberry, Space.com, 14 Nov. 2025
See All Example Sentences for sunspot
Cite this Entry
“Sunspot.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sunspot. Accessed 16 Dec. 2025.
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sunspot
noun
sun·spot
-ˌspät
: one of the dark spots that appear from time to time on the sun's surface and are usually visible only through a telescope
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