Realtime Moon positional, phase, & librations.
Uses algorithms from:
Meeus, Jean. Astronomical Algorithms
Richmond, Virg.: Willmann-Bell, 2009.
Duffet-Smith, Peter. Practical Astronomy with Your Calculator
Cambridge University Press; 3 edition (March 31, 1988)
This is built as a WebGL experiment using Three.js and is expected to work in the latest versions of Google Chrome, Firefox, & Internet Explorer 11.