Coil Temperature

[snork]

Is there any resource which would say, or tell how to figure out, what the physical temperature (Fahrenheit, Celcius) a given ohm coil might reach at a given volt/watt?
I know there are a ton of variables, but I just wonder what the ballpark is these days.

 

[vapdivrr]

if there is, I have never heard of it. it would be cool to actually know.