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What is the Sun's photosphere?

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  1. The visible surface where the Sun becomes opaque
  2. A solid crust over the core
  3. The outermost layer of the corona

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References

  1. Astronomy 2e, 15.1 The Structure and Composition of the Sun openstax.org/books/astronomy-2e/pages/15-1-the-structure-and-composition-of-the-sun Checked 2026-10-10.

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