2. Moon’s Mean Surface Temperature calculation
Tmean.moon
Surface temp..Tmin..Tmean..Tmax
Kelvin.............100.K...220.K...390.K
So = 1.361 W/m² (So is the Solar constant)
Moon’s albedo: amoon = 0,11
Moon’s sidereal rotation period is 27,32 days. But Moon is Earth’s satellite, so the lunar day is 29,5 days
Moon does N = 1/29,5 rotations/per day
Moon is a rocky planet, Moon’s surface irradiation accepting factor Φmoon = 0,47
(Accepted by a Smooth Hemisphere with radius r sunlight is S* Φ*π*r²*(1-a), where Φ = 0,47)
cp.moon = 0,19cal/gr oC, moon’s surface specific heat (moon’s surface is considered as a dry soil)
β = 150 days*gr*oC/rotation*cal – it is a Rotating Planet Surface Solar Irradiation INTERACTING-Emitting Universal Law constant
σ = 5,67*10⁻⁸ W/m²K⁴, the Stefan-Boltzmann constant
Moon’s Mean Surface Temperature Equation Tmean.moon:
Tmean.moon = [ Φ (1 - a) So (β*N*cp)¹∕ ⁴ /4σ ]¹∕ ⁴
Tmean.moon = { 0,47 (1 - 0,11) 1.361 W/m² [150* (1/29,5)*0,19]¹∕ ⁴ /4*5,67*10⁻⁸ W/m²K⁴ }¹∕ ⁴ =
Tmean.moon = ( 2.488.581.418,96 )¹∕ ⁴ = 223,35 K
Tmean.moon = 223,35 Κ
The newly calculated Moon’s Mean Surface Temperature differs only by 1,54% from that measured by satellites!
Tsat.mean.moon = 220 K, measured by satellites.
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Earth is on average warmer 68C than Moon.
Earth is on average warmer 68C than Moon (288K – 220K = 68C).
It is not only because of the Earth having 29,53 times faster rate of rotation.
Earth has a five (5) times higher average surface specific heat (for Earth cp.earth = 1 cal/gr*oC, it is because Earth has a vast ocean; and for Moon cp.moon = 0,19cal/gr oC – its soil is a dry regolith).
Earth is warmer than Moon not because of its very thin atmosphere trace greenhouse gasses content.
Earth is warmer because its surface has 155,42 times higher the (N*cp) product than Moon's surface.
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So if the Moon rotated four times as fast...
The dawn and dusk terminators would both be warmer then.
Lets apply the Planet Surface Rotational Warming Phenomenon:
The Moons mean surface temperature Tmean = 220K
would be then 4^1/16 (four in sixteenth root) times higher.
(4^1/16)*220K = 1,09050*220K =240K
Thus, if Moon rotated four times as fast, its mean surface
temperature would be 240K.
https://www.cristos-vournas.com
The faster a planet rotates (n2>n1) the higher is the planet’s average (mean) temperature T↑mean:
Tmin↑→ T↑mean ← T↓max
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