# Black Hole Temperature

by sabanation12
Tags: black, hole, temperature
 Sci Advisor P: 4,782 Looks like you missed a factor of the speed of light in your equation. Should be: $$T = {h c^3 \over 16\pi^2 GMk}$$ Anyway, the easiest way to calculate these things is to just plug them into Google. The Google calculator knows about units, fundamental constants, and a lot of common values, so you can simply type in: h*c^3/(16*pi^2*G*(mass of sun)*k) ...to Google, and it will give you the right result (about 10^-8 K). Oh, and there's also a nifty calculator for all of the values related to a black hole: http://xaonon.dyndns.org/hawking/
 Sci Advisor PF Gold P: 9,377 Black Hole Temperature Shouldn't that be $$\hbar c^3 / 8 \pi GMk$$ or did I miss something?
 Quote by Chronos Shouldn't that be $$\hbar c^3 / 8 \pi GMk$$ or did I miss something?
It's just a difference of whether to use $h$ or $\hbar$ :)