what is solar constant? how to calculate it?

Dear Student!

The solar constant is defined as the quantity of solar energy (W/m²) at normal incidence outside the atmosphere (extraterrestrial) at the mean sun-earth distance. Its mean value is 1367.7 W/m².

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The solar constant includes all types of solar radiation, not just the visible light. It is measured by satellite to be roughly 1.366 kilowatts per square meter (kW/m²).The solar constant includes all types of solar radiation, not just the visible light. It is measured by satellite to be roughly 1.366 kilowatts per square meter (kW/m²)

 Calculate the solar constant for mars?The sun has a temperature of 5777 k and a radius of 6.96 *10^5km. The sun-mars distancy is 2.28*10^8 km. The albedo of mars is 0.16.
ans:the solar constant is the mount of energy asorbed my a planet per m^2. And also that the albedo of a planet is the amount of light energy which is absobed (not reflected) by the atmosphere.S = q*(R/Des)^2*^4

S = 588.5 W/m^2

 




 

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