Having nothing better to do, I've been reprocessing an image of M17 taken last summer. It has the usual red color but there's a blue haze to the East (left) of the bright part of the nebula. Can someone tell me if that's really there? The image can be found at: http://www.pbase.com/paullind/image/151133825 Paul -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.