It's also 20 times the distance from the sun, so it's hardly comparable.
The Earth and moon are essentially the same distance from the sun. So what's your belief concerning their different average temps if not the greenhouse effect?
The ideal gas laws, with adjustments for solar input get pretty damned close to the actual temperature of every planet in the solar system with an atmosphere...the greenhouse hypothesis doesn't even get close here without an ad hoc adjustment factor.....I tend to go with the hypothesis that works wherever it is tried rather than a hypothesis which works nowhere unless you include a fudge factor...
These calculations were provided by Ross MLeod..properties are from the planetary fact sheet from NASA....feel free to point out any errors to NASA...(note: (S)=Surface (1 bar)= equals altitude where pressure equals that at earth sea level
Venus Earth Mars Jupiter Saturn Uranus Neptune
Pressure (millibar) 92000 1014 6.9-9 1000 1000 1000 1000
(S) (S) (S) (1 bar) (1 bar) (1 bar) (1 bar)
Density 65000 1217 20 160 190 420 450
(S) (S) (S) (1 bar) (1 bar) (1 bar) (1 bar)
Molecular weight (g/mole) 43.45 28.97 43.34 2.22 2.07 2.64 2.59
Temp(K) 737K 288K 210k 165K 134K 76K 72K
(S) (S) (S) (1 bar) (1 bar) (1 bar) (1 bar)
Solar Irradiance (wm/2) 2613.9 1367.6 589.2 50.50 14.90 3.71 1.51
Black Body Temperature (K)184.2 254.3 210.1 110.0 81.1 58.2 46.6
Venus
PV = nRT
92000 (mb) x 1000 (litre/ m3) = 65000 (g/ m3) / 43.45 (g/mole) x 0.082 x T
T = 92000/ (0.082 x 65000/43.45) = ~750 K
Earth
PV = nRT
1014 (mb) x 1000 (litre/ m3) = 1217 (g/ m3) / 28.97 (g/mole) x 0.082 x T
T = 1014/ (0.082 x 1217/28.97) = ~294 K
Mars
PV = nRT
Because the Martian atmosphere is so slight 2 calculations were used– the minimum and maximum measured at the Viking Lander Site to demonstrate something significant.
6.9 (mb) x 1000 (litre/ m3) = 20 (g/ m3) / 43.34 (g/mole) x 0.082 x T
T = 6.9/ (0.082 x 20/43.34) = ~182 K; or,
T = 9/ (0.082 x 20/43.34) = ~238 K
Jupiter
PV = nRT
1000 (mb) x 1000 (litre/ m3) = 160 (g/ m3) / 2.22 (g/mole) x 0.082 x T
T = 1000/ (0.082 x 160/2.22) = ~169 K
There can, by definition be no greenhouse effect on jupiter
Saturn
PV = nRT
1000 (mb) x 1000 (litre/ m3) = 190 (g/ m3) / 2.22 (g/mole) x 0.082 x T
T = 1000/ (0.082 x 190/2.07) = ~133 K
There can, by definition, be no greenhouse effect on Saturn
Uranus
PV = nRT
1000 (mb) x 1000 (litre/ m3) = 420 (g/ m3) / 2.64 (g/mole) x 0.082 x T
T = 1000/ (0.082 x 420/2.64) = ~77 K
There can, by definition, be no greenhouse effect on Uranus
Neptune
PV = nRT
1000 (mb) x 1000 (litre/ m3) = 450 (g/ m3) / 2.69 (g/mole) x 0.082 x T
T = 1000/ (0.082 x 450/2.69) = ~73 K
There can, by definition, be no greenhouse effect on Neptune
Particularly note the actual surface temperature of earth and the temperature calculated via the ideal gas laws....very close....doesn't the greenhouse hypothesis claim that an additional 33C is added by the greenhouse effect? Don't you find it interesting that according to the greenhouse hypothesis without the greenhouse effect the temperature would be -18C while the ideal gas laws say that the temperature on earth should be pretty damned close to the actual temperature on earth?...or are you so lacking in critical thinking skills, or have been so thoroughly duped that you find yourself unable to even question those whom you perceive as smarter than yourself?
And as to the physics of the greenhouse effect working fine on other planets, that statement is laughable...the actual temperature on the surface of Venus is about 464C the ideal gas laws, without the addition of incoming solar radiation predict that the temperature on venus should be about 477C...the greenhouse effect model, when applied to venus predicts that without a greenhouse effect, the temperature on venus would be a balmy 68C....the ideal gas laws say 477....the greenhouse effect claims to be 396 degrees on venus.
It is absolutely laughable....What would the greenhouse effect be on planets that have no greenhouse effect due to a lack of greenhouse gasses? The ideal gas laws predict those temperatures just fine...what does the greenhouse effect say? Let me guess..no answer...
There is no greenhouse effect as described by climate science....there is an atmospheric thermal effect which is profound, but it doesn't care what the composition of the atmosphere is..only its mass, and thus isn't politically attractive as human activity can not be demonized...