• Question: how hot is the centre of the sun?

    Asked by _amberley_ to Frank on 24 Mar 2015.
    • Photo: Frank Longford

      Frank Longford answered on 24 Mar 2015:


      The solar core is around 15,700,000 degrees C. That’s hot enough to force 360,000,000,000,000,000,000,000,000,000,000,000,000 protons together per second to make helium nuclei releasing 38,000,000,000,000,000,000,000,000 joules of energy every second!

      In short, it’s pretty hot.

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