== Earth, Uranus and Neptune Black Body Temperature ==
estimating IR albedo and server sky heating
------

||                    || Earth   ||<-2> Uranus        || Neptune ||
|| Semimajor Axis     || 1.0     ||<-2> 19.2          || 30.0    || AU                  ||
|| Bond Albedo        || 0.29    ||<-2> 0.30          || 0.29    || optical all angles  ||
|| Geometric Albedo   || 0.367   ||<-2> 0.51          || 0.41    || optical towards Sun ||
|| Sunlight           || 1366    ||<-2> 3.706         || 1.518   || W/m^2^              ||
|| Sunlight Absorbed  || 960.0   ||<-2> 1.816         || 0.895   || W/m^2^ (geometric albedo)||
|| Isotropic IR       || 240.0   ||<-2> 0.454         || 0.224   || W/m^2^              ||
|| Temperature        || 255.06 || 76?    || 65?     || 55      || K (at IR "top" )    ||
|| IR Luminosity e=1  ||         || 1.892  || 1.012   || 0.519   || W/m^2^              ||
|| est. IR emissivity || 1.0     || 0.234  || 0.448   || 0.432   ||                     ||
||<-6>'''Plus Server Sky 0.550 W/m^2^ ambient'''                                        ||
|| IR absorbed        || 0.550   || 0.129  || 0.246   || 0.238   || W/m^2^              ||
|| Total IR emitted   || 240.55  || 0.583  || 0.700   || 0.462   || W/m^2^              ||
|| New Temperature    || 255.21  || 81.4   || 72.4    || 65.9    || K (at IR "top" )    ||
|| Heating            ||   0.15  || 5.4    || 7.4     || 10.9    || K hotter            ||

1366 W/m^2^ at 1 AU, sb = 5.670367e-8 W/m^2^K^4^