I was looking through an old photo album and found a picture of Comet Hale-Bopp. I knew from the trees (and memory, actually), that it had been to the NW of my driveway. Using GoSkyWatch on my phone, I was able to determine the date the picture was taken – April 7, 1997 – by matching the comet’s position relative to the stars. Interestingly, the position in the app is not exactly where it is in the photograph, but this is the closest match. The app, by the way, gives the comet’s magnitude on that date as -1.6.
Since this is a scanned picture from film, I don’t have any camera setting or equipment info for this one. But I can tell I must have used a long exposure and a tripod from the length of the star trails.