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What is the temperature of the Sun's core? How do astronomers determine this temperature? How accurate is the figure?

Answer 1

Temperature of Sun;s core is estimated to be 15 million degree C.

mostly theoretical calculations using readily available data, such as surface temperature that can be measured remotely, to determine fusion core pressure, etc.

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Answer 2

Emilia Acosta

The Sun's core temperature is estimated to be around 15 million degrees Celsius by astronomers based on observations of solar radiation and particle behavior inside the Sun. This estimate is highly accurate because it is derived from both comprehensive theoretical models and observational data.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.