You can create afocal images by placing your camera over the eyepieces of a telescope. In this way, the camera creates a lasting image of what would otherwise be a fleeting observation. Afocal photography is what allows astronomers to share the telescope's projections.
If you don't have a telescope, you should come to one of the ASN's monthly star parties where members who own telescopes are egar to share them with others.
(Hover over images for descriptions)
(Click to enlarge and isolate)