Short trails

This is a composite of 900 pictures into one, which lasted exactly 15 minutes with a one-second exposure (times 900):

Short trails

ISO 1600, no noise reduction.

Update, from short after midnight:

Here’s another one, with only 90 pictures composed into one. But now each picture had an exposure time of 20 seconds at ISO 200, which actually took double the time – half an hour:

Star trails II

Thanks for viewing.