Anyone got an idea of what the weird blue thing is in this image. I was just testing my camera on sirius and this happened. No I did not photoshop it in! Looks amazing in hi-res! I have cropped slightly.
jezza
Forgot to mention that it was shot on a Canon 40d prime focus with 10" Meade Schmidt Newt. There is no camera lens. Subsequent images showed no anomaly. Can't have been something on telescope lens as it has a sharp edge....IE: that would be out of focus.