Few astroimagers have the kind of history and spectacular results as Tony Hallas, contributing editor to Astronomy magazine and experienced skyshooter. For years, Tony has pioneered shooting deep-sky objects in color, and his recent image of the dark nebula van den Bergh 142 is one of the greats. Located in the heart of IC 1396, a fantastic emission nebula in Cepheus, this nebula is visible with large amateur scopes on very dark nights. Amazingly, Hallas shot this image during Full Moon from Foresthill, California.
Very nice. I know its not a 'science' shot but any idea as to the filters/wavelengths used? What color stands in for what atom?