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The directly visible outer layer or atmosphere of a star, especially of the sun.
pho′to·spher′ic (-sfîr′ĭk, -sfĕr′ĭk) adj.
(Astronomy) the visible surface of the sun, several hundred kilometres thick
a sphere of light or radiance.
pho`to•spher′ic (-ˈsfɛr ɪk) adj.
The thin, outer layer that forms the visible surface of a star, especially the sun.
The visible outer layer of a star, especially of the Sun.
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|Noun||1.||photosphere - the intensely luminous surface of a star (especially the sun)|
surface - the extended two-dimensional outer boundary of a three-dimensional object; "they skimmed over the surface of the water"; "a brush small enough to clean every dental surface"; "the sun has no distinct surface"
Sun - the star that is the source of light and heat for the planets in the solar system; "the sun contains 99.85% of the mass in the solar system"; "the Earth revolves around the Sun"