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/(2/(322097 km) - (1.195 km/s)^2/(398600.4418 km^3/s^2))
Natural Language
Math Input
Extended Keyboard
Examples
Upload
Random
