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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All three eruptions came from sunspot region AR 4168, which rapidly developed a more complex magnetic structure over the weekend.
—
Daisy Dobrijevic, Space.com, 4 Aug. 2025
The solar flare, categorized as X-class in scale—the highest scale, was triggered by an active region of a sunspot on June 19 at 11:50 p.m. UTC.
—Soo Kim, MSNBC Newsweek, 20 June 2025
Continent-size sunspots appear to swirl near the heart of the sun’s inner atmosphere in the close-up.
—Ashley Strickland, CNN Money, 4 May 2025
But this method, called transit spectroscopy, sometimes has a hard time distinguishing cloudy atmospheres from absent ones, and stellar messiness like sunspots can further complicate interpretations.
—Elise Cutts, Quanta Magazine, 12 Mar. 2025
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Daisy Dobrijevic, Space.com, 4 Aug. 2025
The solar flare, categorized as X-class in scale—the highest scale, was triggered by an active region of a sunspot on June 19 at 11:50 p.m. UTC.
—Soo Kim, MSNBC Newsweek, 20 June 2025
Continent-size sunspots appear to swirl near the heart of the sun’s inner atmosphere in the close-up.
—Ashley Strickland, CNN Money, 4 May 2025
But this method, called transit spectroscopy, sometimes has a hard time distinguishing cloudy atmospheres from absent ones, and stellar messiness like sunspots can further complicate interpretations.
—Elise Cutts, Quanta Magazine, 12 Mar. 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 19 Aug. 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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