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  1. www.britannica.com › science › photospherePhotosphere | Sun’s Surface, Solar Radiation & Solar Flares

    Photosphere, visible surface of the Sun, from which is emitted most of the Sun’s light that reaches Earth directly. Since the Sun is so far away, the edge of the photosphere appears sharp to the naked eye, but in reality the Sun has no surface, since it is too hot for matter to exist in anything.

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  3. scied.ucar.edu › learning-zone › sun-space-weatherThe Surface of the Sun - Center for Science Education

    Most of the light energy produced in the Sun’s core escapes from the photosphere. Because the plasma is cooler and less dense at the surface, there are fewer collisions to trap the energy carrying photons within the Sun. Instead, energy radiates away through space, some of it reaching Earth.

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    • Photosphere Overview & Features - Lesson | Study.com
    • P-dog's blog: boring but important: Presentation: photosphere
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    • The Outer Layers of the Sun - Presentation Astronomy

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  5. www.nasa.gov › image-article › layers-of-sunLayers of the Sun - NASA

    Oct 10, 2012 · More detail on the outer layers follows: Photosphere – The photosphere is the deepest layer of the Sun that we can observe directly. It reaches from the surface visible at the center of the solar disk to about 250 miles (400 km) above that.

  6. solarscience.msfc.nasa.gov › surfaceNASA/Marshall Solar Physics

    Aug 11, 2014 · A number of features can be observed in the photosphere with a simple telescope (along with a good filter to reduce the intensity of sunlight to safely observable levels). These features include the dark sunspots , the bright faculae , and granules .

  7. sciencenotes.org › layers-of-the-sun-diagram-and-factsLayers of the Sun – Diagram and Facts - Science Notes and ...

    Feb 3, 2024 · Photosphere. Thickness/Size: Approximately 500 kilometers. Temperature: Around 5,500°C. Characteristics: The photosphere is the Sun’s visible surface, where light is emitted that we see from Earth. It’s marked by granules and sunspots, which are manifestations of the Sun’s magnetic activity.

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  9. www.space.com › 17160-sun-atmosphereThe sun's atmosphere: Photosphere, chromosphere and corona

    Jun 21, 2022 · The photosphere is marked by bright, bubbling granules of plasma and darker, cooler sunspots, which emerge when the sun's magnetic field breaks through the surface. Sunspots appear to move across...

  10. solar-center.stanford.edu › hidden-pic › photosphereThe Solar Photosphere - Stanford University

    The photosphere is the lowest layer of the solar atmosphere. It is essentially the solar "surface" that we see when we look at the Sun in "white" (i.e. regular, or visible) light. When we observe sunspots and faculae (bright little cloud-like features) we are observing them in the photosphere.

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