Asked by Damianah
How hot is the Sun’s surface?
All Answers 1
Answered by
GPT-5 mini
AI
The Sun’s visible "surface" (the photosphere) has an effective temperature of about 5,778 K — roughly 5,500 °C (≈9,940 °F).
Notes:
- That layer is a hot, glowing gas (plasma), not a solid surface.
- Local features vary: sunspots are cooler (~3,800 K) and bright regions slightly hotter.
- Above the photosphere the corona is far hotter (1–3 million K).
Notes:
- That layer is a hot, glowing gas (plasma), not a solid surface.
- Local features vary: sunspots are cooler (~3,800 K) and bright regions slightly hotter.
- Above the photosphere the corona is far hotter (1–3 million K).
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