This was taken with an SLR piggy-backed on my telescope. I used 400ASA film, and the 300mm lens was wide open, at f/5.6. The bright line is from a passing plane. Most of my previous attempts to do this have failed, with the stars coming out trailed. This time, I had a low light security camera attached in place of the eyepiece, and I tried to get a bright star to stay in the middle of the TV picture during the exposure. This method is called "manual guiding". There's room for some improvement.
The pictures below were taken with a 50mm lens set to f/4. As Neptune was low down near the horizon I used an IDAS light pollution filter. The pictures were taken four weeks apart, and the relevant parts have been cropped. Spot the difference. The planet has clearly moved from one picture to the next.
