Planet 2 is warmer than planet 1
because (N2⋅cp2) > (N1⋅cp1)
✍️ In the Figure:
Two bodies subjected to the same solar flux
The Planet Surface Rotational Warming Phenomenon
states:
Planets and moons (without atmosphere, or with a thin atmosphere) the Mean Surface Temperatures (Tmean) relate (everything else equal) as their (N*cp) products’ sixteenth root:

The Planet or Moon the Mean Surface Temperature Universal Equation (Tmean) is:

Variable definitions
See the derivations further on below.
Written by Christos I. Vournas,
M.sc. mechanical engineer
Key words:
— Specular Reflection
— Immediate IR Emission
— Rotational Warming Phenomenon
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Tmean.ceres
So = 1.362 W/m² (So is the Solar constant)
Ceres’ albedo: a.ceres = 0,090±0,0033 (V-band) Geometric
R = 2,77 AU semi-major axis (distance from sun in astronomical units)
1/R² = 1/2,77² = 1/7,673 = 0,13033
Ceres’ sidereal rotation period is 9,074 h
Ceres does N = 24/9,074 = 2,645 rotations per day
Ceres’ surface irradiation accepting factor Φceres = 1
Ceres' surface is water ice and hydrated minerals, such as carbonates and clay. Ceres can be considered as water ice surface planet.
Cp = 1 cal/gr*oC
β = 150 days*gr*oC/rotation*cal – it is the Planet Surface Solar Irradiation INTERACTING-Emitting Universal Law constant
σ = 5,67*10⁻⁸ W/m²K⁴, a Stefan-Boltzmann constant
Ceres' Without-Atmosphere mean surface temperature equation Tmean.ceres is
Tmean.ceres = [ Φ (1-a) So (1/R²) (β*N*cp)¹∕ ⁴ /4σ ]¹∕ ⁴
Τmean.ceres = { 1*(1-0,09)*1.362 W/m² *0.13033*[150 *2,645*1]¹∕ ⁴ /4*5,67*10⁻⁸ W/m²K⁴ }¹∕ ⁴ =
= (3.176.345.599,84)¹∕ ⁴ = 237,4 K
Tmean.ceres = 237,4 K
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Table of contents - Links
0). Explain Rotational Warming Model.
Demonstrate the Initial PREMISE, Links: (1) and (2)
3).The Planetary Temperatures Comparison Criteria.
4). "The total amount of the specularly reflected portion of solar flux"
5). How A Planet Retains The Solar Energy - the role of the Immediate IR emission.
6). Φ -Factor is an analogue of the well known Drag Coefficient Cd=0,47
7). “What ‘portion’ of ‘sunlight’ reaches surface of Earth?”
8). The satellites do not measure Bond Albedo.
9). Stefan-Boltzmann formula J = σ T4 W/m² doesn't apply to terrestrial temperatures.
10). The Theoretical Equation.
12). The actual reason of the observed Global Warming.
13). The Axial Precession's role in Global Warming.
14). The Original Milankovitch cycle.
15). The Reversed Milankovitch cycle.
16). The higher CO2 content in ice core samples relates to colder periods.
17). Sensible Heat /Latent Heat ratio.
18). The conventional greenhouses, and the role of immediate IR emission.
19). NASA Technical Memorandum An Earth Albedo Model
20). The yearly total Immediate IR Emitted solar energy - in our times - is lower.
21). The yearly total reflected solar energy - in our times - is lower.
Appendix - Links
1). Earth's Corrected Effective Temperature (210 K ) calculation.
2). Earth's Average Surface Temperature (288 K ) calculation.
3). Moon's Corrected Effective Temperature (224 K ) calculation.
4). Moon's Average Surface Temperature (220 K ) calculation.
5). Mars' Corrected Effective Temperature (174 K ) calculation.
6). Mars' Average Surface Temperature (210 K ) calculation.
7). Mercury's Corrected Effective Temperature (364 K ) calculation.
8). Mercury's Average Surface Temperature (340 K ) calculation.
9). Titan's Average Surface Temperature (93,7 K ) calculation.
10). Earth / Mars satellite measured mean surface temperatures 288 K and 210 K comparison.
11). Earth's /Moon's temps 288K /220K comparison.
13). Blog.
14). Table of data Link: Also view Table 1
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