Tricks like this need a fair amount of preparation, but once you have the ingredients and the camera set up, the photo takes 20 seconds to do. There is no after shooting computerised faking of this photo! Trick learnt from Evan Sharboneau.
This is one FAILED photo! It is supposed to be a complete and TIDY coloured orb, but I can never get it right!!!!!!!!!!!!! Will have to try again when the weather is warmer. You need to be outside on a dark night to do this, and it's way too cold at the moment!