Fusion Enery How is such powerful energy in the sun achieved? How much energy does the sun radiate per second? 3.8×1026J How many kilos does the sun The sun lose per second? Solar central temperature:106 K(core 4×109kg temperature up to 15 million degrees) Very high pressure:300 billion atmospheres ●A lot of particles Considerable time span The reaction cross section is large enoughFusion Enery How is such powerful energy in the sun achieved?  Solar central temperature: 106 K (core temperature up to 15 million degrees)  Very high pressure: 300 billion atmospheres  A lot of particles  Considerable time span  The reaction cross section is large enough The sun How much energy does the sun radiate per second? 3.8× 1026 J How many kilos does the sun lose per second? 4×109 kg