The Planet Surface Rotational Warming Phenomenon


23.08.2021 17:39

Curious George

Why don't you include Venus in the list of planets?

24.08.2021 07:49

Christos Vournas

George, please visit my site page
I have explained there why the faster rotating planet is on average warmer
You may write here, two or more comments together

25.07.2021 14:40

Ron Clutz

Christos, I am glad you appreciate my posts regarding your research. Third, and last one for awhile, is

25.07.2021 15:22

Christos Vournas

Ron, "The table above and graph below shows that Earth’s warming factor is correctly calculated despite ignoring any effect from its thin atmosphere." Thank you!!!

23.07.2021 21:01

Ron Clutz

Christos, I did a second post focusing on Moon and Earth

24.07.2021 06:14

Christos Vournas

Ron, yes, I visited your second post and I liked it very much. Ron, you have the rare ability... thank you very much! And please continue... Christos

21.07.2021 21:39

Ron Clutz

Christos, thank for this work and for linking the address at Climate Etc. I did a synopsis of your findings at my blog is:

22.07.2021 07:06

Christos Vournas

Ron, thank you for doing a synopsis of my findings at your blog.
We are capable now to theoretically calculate planet mean surface temperatures.
Thank you again,

07.07.2020 01:13


Sir, did you derive this formula, or is it from a book or article on planetary science?

07.07.2020 22:05

Christos Vournas

Thank you, Craig. Yes I derived this formula.

10.12.2019 18:32

Ireneusz Palmowski

Can anything be said about the effective surface temperature of Venus? What do you think about it?

11.12.2019 08:16

Ireneusz Palmowski Palmowski

I gave such an answer at

10.12.2019 19:38

Christos Vournas

Φ=1 for Venus' absorption budget. Jabs = (1-a)Sπr². A Planet Effective Temperature Complete Formula is for a planet-without-atmosphere. We apply it only on very thin atmosph Earth's and Titan's cases.

08.12.2019 14:41

Ireneusz Palmowski

Thank you. I showed your page on Dr. Roy Spencer's blog and WUWT. Greetings.

08.12.2019 12:54

Christos Vournas

The calculations of solar radiation reflection are based on the smooth spherical shape for Φ=0,47. For albedo are based on the surface features. Φ=1 is for gaseous - no surface to reflect planets.

08.12.2019 09:45

Ireneusz Palmowski Palmowski

"N rotations/day, is planet’s sidereal rotation period"
I ask for an explanation.
I understand that this is the most important point of your equation.

08.12.2019 12:45

Christos Vournas

Thank you Ireneuzs. N rotations/day is N rotations/24 hours. The faster - the higher is its average temperature. N and pc influence the way a solar irradiated blackbody surface interact with the S .

06.12.2019 20:25

Christos Vournas

Ireneusz, feel free to ask me anything. And thank you for asking.

08.12.2019 09:26

Ireneusz Palmowski

Thank you for your answer. Can you explain what the calculations of solar radiation reflection are based on? Yes for a layman.

06.12.2019 13:27

Ireneusz Palmowski

"The planet surface solar irradiation accepting factor Φ (the spherical surface’s primer geometrical quality). For Mercury, Moon, Earth and Mars without atmosphere Φ = 0,47."
Can you explain this?

06.12.2019 20:21

Christos Vournas

The solar irradiation reflection, when integrated over a planet sunlit hemisphere is 0,53 [ ( 1- a) S ].
The fraction left for hemisphere to absorb is Φ = 1 - 0,53 = 0,47, or Jabs = Φ (1 - a ) S