photosphere
noun
pho·to·sphere
ˈfō-tə-ˌsfir 
1
: a sphere of light or radiance
2
: the luminous surface layer of the sun or a star
Examples of photosphere in a Sentence
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Poitevin’s latter analysis revealed that thanks to the prominences, for him, the partial eclipse began 4 minutes and 7 seconds before the moon began to cross the photosphere.
—
Jamie Carter, Forbes, 8 Oct. 2024
Eclipses are said to begin when the moon crosses the sun’s disk, its photosphere, but through an H-alpha telescope, the observer sees the chromosphere, so the eclipse always starts slightly earlier.
—Jamie Carter, Forbes, 8 Oct. 2024
The sun’s photosphere is full of millions of bubbles formed through convection.
—Ashley Strickland, CNN, 11 Sep. 2024
The Parker probe saw the entire thing—from the CME's generation, to its emission from the sun's surface (or photosphere), to its propagation in the space between our star and our planet.
—Rebecca Boyle, Scientific American, 1 Mar. 2024
See all Example Sentences for photosphere 
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Jamie Carter, Forbes, 8 Oct. 2024
Eclipses are said to begin when the moon crosses the sun’s disk, its photosphere, but through an H-alpha telescope, the observer sees the chromosphere, so the eclipse always starts slightly earlier.
—Jamie Carter, Forbes, 8 Oct. 2024
The sun’s photosphere is full of millions of bubbles formed through convection.
—Ashley Strickland, CNN, 11 Sep. 2024
The Parker probe saw the entire thing—from the CME's generation, to its emission from the sun's surface (or photosphere), to its propagation in the space between our star and our planet.
—Rebecca Boyle, Scientific American, 1 Mar. 2024
See all Example Sentences for photosphere
Dictionary Entries Near photosphere
Cite this Entry
“Photosphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/photosphere. Accessed 16 Nov. 2024.
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