A planet with average temperature 288K we cannot know what it emirs
Earth’s average temperature 288K is a comparison number. A planet with average temperature 288K we cannot know what it emits.
8 October 2026
Nikolov
Nikolov: On the average temperature of airless spherical bodies and the magnitude of Earth’s atmospheric thermal effect | SpringerPlus | Full Text (springeropen.com) "While the average outgoing LW flux of a planet is an observable physical parameter, Te derived from it using Eq. (3) is a mathematical abstraction with no physical analogue at, below or above the surface. Thus, planetary effective emission temperatures are not compatible with measured ph ysical temperatures regardless of the albedo they are based on. In other words, Te is a non-physical quantity with respect to a sphere. Consequently, comparing Earth’s observed global mean surface air temperature (287.6 K) to any Te is bound to produce numerically and theoretically misleading results. The conceptual distinction between Te on one hand and Tna or Ts on the other arises from the mathematical understanding that mean planetary temperatures cannot in principle be inferred from globally averaged radiative fluxes. In this regard,
22 June 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
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
Earth is closer to sun on winters, Earth gets warmer, Earth is closer to sun on summers - colder.
Earth's thermal inertia is tremendously large. It is the reason Earth is never in equilibrium with incoming solar energy. Either there is a slow, orbitally forced rise in global accumulated thermal energy, or, decline in thermal energy, because of the orbitally forced the lessened the surface accumulative abilities. In our times the total yearly SW reflection along with the total yearly immediate IR emission are lower, than some few millennia previously. Lowering radiative losses resulted to increased heat accumulation and global temperature rise. The warming is because of orbital circumstances, not because of extensive fossil fuels burning. The phenomenon originates from the planet's changing ability to accumulate solar energy. When Earth is closer to sun on winters, Earth gets warmer, than when Earth is closer to sun on summers. A big differencies occur, with the intermediate phases in between. You will be immediatelly convinced by a single glance at a classroom's demonstration globe
5 March 2026