The planetary temperatures Comparison Criteria Tsat/Te
The planetary temperatures Comparison Criteria Tsat/Te In planetary effective temperature equation (Te) the solar flux (S) is in fourth root. We can rewrite Initial Premise for two identical spheres as: Tmean1/Tmean2 = Te1/Te2 or, for two identical spheres Tmean1/Te1 = Tmean2/Te2 Now, we extend this to two identical bodies, planets and moons, comparing their respective satellite measured temperatures Tsat1 and Tsat2 and write: Tsat1/Te1= Tsat2/Te2 Therefore we have defined the planetary temperatures Comparison Criteria (Tsat/Te). Important notice: For two identical celestial bodies the Tsat1/Te1= Tsat2/Te2 But if for two bodies Tsat1/Te1= Tsat2/Te2 that doesn't necessarilly prove the bodies identical. Link: https://x.com/i/grok/share/059e0e4047e24cfb9c01831274bff707
14 May 2026
They don't absorb according to Lambertian cosin law
Smooth spheres and smooth surface planets and moon, specifically: Mercury, Earth, the Moon, Mars, Europa, Ganymede do not follow Lambertian cosin law because they have strong specular reflection constituents. They do not absorb the entire flux falling on their surface. Link: https://x.com/i/grok/share/4bfaf2f759fc4db4857641e4fc66af72
11 May 2026
Initial Premise Test
Christos Vournas @CVournas44116 · 30m Initial Premise Test https://cristos-vournas.com/blog/initial-premise-test… Thought for 11s The X post by mechanical engineer Christos Vournas links to his blog post "Initial Premise Test," which tests the basic assumption that planetary surface temperatures scale solely with the fourth root of incoming solar flux for identical bodies. The test normalizes temperatures of solar system bodies (planets and moons) to Earth's solar flux distance, then successively adjusts for albedo, rotational warming via (N*cp)^{1/16}, and a solar irradiation accepting factor Φ (~0.47 for smooth surfaces accounting for specular reflection), causing measured temperatures to converge tightly around Earth's 288 K. Vournas uses this to argue that factors like surface roughness, rotation rate, and heat capacity explain temperature differences across bodies more than atmospheric effects, challenging standard greenhouse models with data tables showing residuals under 3% aft
24 April 2026
Explain Rotational Warming Model
Good day everyone! Here it is a Link to conversation with Grok, where Grok (X) explains the Rotational Warming Model. Best, Christos https://x.com/i/grok/share/9a734146d4b04885b8ec99e1f23e597c ////////////////////////////////////// Christos Vournas @CVournas44116 · 3h Mean Surface Temperature calculation Tmean.haum... https://cristos-vournas.com/blog/mean-surface-temperature-calculation-tmean-haumea… Thoughts Christos Vournas shares his blog post calculating Haumea's mean surface temperature at 54.55 K, close to satellite estimates below 50 K, using a custom formula based on solar flux at ~50 AU, albedo of 0.33, and ice surface properties. The calculation employs his rotational warming model with the (N*cp)^(1/4) term, where N is rotations per day (~6.13 for Haumea's 0.915-hour period) and cp=1 cal/gr°C for crystalline ice, setting the surface irradiation factor Φ to 1. Vournas applies this approach to support his broader theory on planetary temperatures, highlighting how rotation and
13 April 2026
Mean Surface Temperature calculation Tmean.haumea < 50K
Haumea Mean Surface Temperature calculation Tmean.haumea < 50K Tmean.haumea Distance currently ~50 AU (1/R²) = (1/50²) = 1/2500 Haumea has 2500 times less solar irradiation intensity than Earth has Rotation: .915341±0.000005h[16] (0.163139208d) Haumea’s albedo: a.haumea= 0,33 (Bond) Haumea performs 1 rotation every 3,915 hours N = 24 /3,915 = 6,130 Rotations /day Haumea is a crystallin ice surface planet, Haumea’s surface irradiation accepting factor: Φ.haumea= 1 cp.haumea = 1 cal/gr oC (for crystallin ice surface) 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 Haumea's Mean Surface Temperature Equation is: Tmean.haumea = [ Φ (1-a) So (1/R²) (β*N*cp)¹∕ ⁴ /4σ ]¹∕ ⁴ Tmean.huames = [ 1 (1-0,33) 1.361 W/m²*(0,0004)*(150*6,130*1)¹∕ ⁴ /4*5,67*10⁻⁸ W/m²K⁴ ]¹∕ ⁴ = =( 8.856.000 )¹∕ ⁴ = 54,55 K Tmean.haumea = 54,55 K The calculated Haumea’s mean surface temperature
13 April 2026
Venus has a two hundred eighty thousand (280 000) times more CO2 in its atmosphere.
Atmosphere is very thin to play a role of a warming blanket. Atmosphere is not able to warm Earth’s surface. Unfortunatelly, when Earth’s surface temperature (288K) is compared with the surface temperature of the airless Moon (220K), some climatologists still claim it warms surface by +68°C! Opponent: Christos, Christos, Christos, explain this fact: “Venus is much hotter than Mercury, despite being further from the Sun. Venus has a surface temperature hot enough to melt lead. This high temperature is due to a thick greenhouse atmosphere that traps heat, whereas Mercury has no atmosphere to hold onto solar energy.” I look forward to your tortured response. - Answer: Thank you for your response. When comparing Venus' atmosphere vs Earth's "This high temperature is due to a thick greenhouse atmosphere that traps heat, whereas Mercury has no atmosphere to hold onto solar energy." Venus has a two hundred eighty thousand (280 000) times more CO2 in its atmosphere. It is 280 000 to 1. When co
28 March 2026