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11 maj 2023 · The temperature of the sun varies from around 27 million degrees Fahrenheit (15 million degrees Celsius) at the core to only about 10,000 degrees F (5,500 degrees C) at the surface, according...
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- Curious Kids
13 gru 2023 · The temperature of the Sun varies, from 5500 C (10,000 F) on its surface up to 15 million C (27 million F) at its core. Have you ever wondered just how hot the Sun is? It’s not a single temperature because the Sun consists of layers where different processes occur.
The Sun is gradually becoming hotter in its core, hotter at the surface, larger in radius, and more luminous during its time on the main sequence: since the beginning of its main sequence life, it has expanded in radius by 15% and the surface has increased in temperature from 5,620 K (9,660 °F) to 5,772 K (9,930 °F), resulting in a 48% ...
The core is approximately 20% of the size of the solar interior and is thought to have a temperature of approximately 15 million K, making it the hottest part of the Sun. Above the core is a region known as the radiative zone —named for the primary mode of transporting energy across it.
How do we know the temperature at the centre of the Sun? - BBC Science Focus Magazine.
A rough estimate of a body's temperature in the solar system is $$T=\frac{280K}{\sqrt{D_{AU}}}$$ if we calculate the AU fraction from the Sun's "edge" to its center, R over D = $4.65x10^-3$, and substitute this into the formula, the Sun's temperature would be about 4100K.
At around T ~105 K: Strong radiation in this temperature range means a steep temperature gradient is needed for energy balance. This leads to a “thin” transition region.
