### 1. Earth’s-Without-Atmosphere Effective Temperature Calculation:

**1. Earth’s-Without-Atmosphere Effective Temperature Calculation: **

**So = 1.362 W/m² (So is the Solar constant) **

**Earth’s albedo: aearth = 0,30 **

**Earth is a rocky planet, Earth’s surface solar irradiation accepting factor Φearth = 0,47 **

**(Accepted by a Smooth Hemisphere with radius r sunlight is S*Φ*π*r²(1-a), where Φ = 0,47)**

** β = 150 days*gr*oC/rotation*cal – is a Rotating Planet Surface Solar Irradiation Absorbing-Emitting Universal Law constant **

**N = 1 rotation /per day, is Earth’s sidereal rotation period **

**cp.earth = 1 cal/gr*oC, it is because Earth has a vast ocean. Generally speaking almost the whole Earth’s surface is wet. We can call Earth a Planet Ocean. **

**σ = 5,67*10⁻⁸ W/m²K⁴, the Stefan-Boltzmann constant **

**Earth’s-Without-Atmosphere Effective Temperature Complete Formula Te.earth is **

**Te.earth = [ Φ (1-a) So (β*N*cp)¹∕ ⁴ /4σ ]¹∕ ⁴ **

**Τe.earth = [ 0,47(1-0,30)1.362 W/m²(150 days*gr*oC/rotation*cal *1rotations/day*1 cal/gr*oC)¹∕ ⁴ /4*5,67*10⁻⁸ W/m²K⁴ ]¹∕ ⁴ =**

** Τe.earth = [ 0,47(1-0,30)1.362 W/m²(150*1*1)¹∕ ⁴ /4*5,67*10⁻⁸ W/m²K⁴ ]¹∕ ⁴ = **

**Te.earth = 288,36 Κ **

**And we compare it with the Tsat.mean.earth = 288 K, measured by satellites. **

**Those two temperatures, the calculated one, and the measured by satellites are almost identical.**