Jupiter 8 Dec 2012 UTC
(Night of 7 Dec PDT)
2000 frames each  ~10 mS/frame, best 300 stacked
AVIStack2, Registax, WinJuPos, Photoshop

The image on your left is a standard RGB image. In the Image on your right the Red channel is a mix of Red and
Near IR.

The moon crossing Jupiter is Io