The Sun's core is much hotter and under higher pressure than its surface.
The Sun's Core compared to the Sun's Surface:
Temperature: The Sun's core has a temperature of around 15 million degrees Celsius due to nuclear fusion reactions, while the surface temperature ranges from 4500 K to a few million K. The core is significantly hotter than the surface.
Pressure: In the core, the pressure is extremely high, reaching levels that enable nuclear fusion. On the surface, the pressure is lower compared to the core.
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