Star trails

Tried a different sort of experiment last night with the automatic timer. Rather than build up a time-lapse series of images for a movie, this time I took a series of long exposures for a star trails photograph ...


There's a longer description of how I did up up at Flickr. It worked out pretty well I think. I need to kill the gap I introduced, and it might be better to try a portion of the sky where I can get circular trails. Straight trails with no foreground objects look a little bit like a failed Matlab plot.