Question

Astro 150 Exercise 1 page 5 . How much energy is the Sun putting out altogether? The solar c onstant is the amount of energy from the Sun that pass through 1 cm2 each second at the distance of the Earth. To figure out how the tota amount of energy the Sun is putting all we have to do is add up the total number of square centimeters surrounding the Sun at the distance of the Earth. Since each cm2 receives a solar cons energy each second, simply multiply your value of the solar constant by the total numbe centimeters in the sphere that surrounds the Sun at the distance of the Earth. The area of that sphere is 4TR2, where R is the Earth-Sun distance of 1.5x1013 cm. tant's worth of r of square . Question 8: a) All of the energy of the Sun passes through a sphere with a surface area of cm2 b) This area times your value of the solar constant gives erg/s which is the amount of energy put out by the Sun each second in all wavelengths. This is called the luminosity of the Sun (Lsun). c) How close does your answer come to the true value of Lsun of 3.9x1033 erg/s? Again, express your answer as a percentage difference.

Can you explain a and b in detailed?
Thank you

Answer 1