What is the solar constant for Mercury (r = 5.1 x 10 8 km) -I know the solar rad

Question

What is the solar constant for Mercury (r = 5.1 x 108km)
-I know the solar radiation equation is I=P/4d2.
-And the power emitted from the sun is 3.9 x 1026 W

When I plug this in the formula I am getting 1.2 x 108W/m2
But when I Google the answer, other websites say the solar constantis 9936.9W/m2 .
So how do you really solve this for the solar constant?

Related to this question:
What is the surface temperature on the lit side of Mercury (assumealbedo [] of 0.22)?
-I think I need to know the solar constant of Mercury?
Provided from my book, the energy balance equation is
P = (1-)IA

Emissivity equation? (e= Stefan-Boltzmann constant = 5.67 x10-8 W/m2 K4)
P = eAT4

Explanation / Answer

the distance from mercury to sun is 57,9 . 10^6 km and dont forget to change it to m before using the equation to getP. I 've calc P at about 9200 W/m^2, which is pretty close .

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.