Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
1.244e29 J / (1kW/m^2 * π * (1,737.5 km)^2)
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
