Aurora
Finally I was able to see the aurora from Stockholm city. When I found out that it was supposed to be a good chance for it I didn't see anything when starting looking. After a while the aurora was clearly visible.
Date: 2015-10-07 / 20:42:00 UTC
Location: Stockholm, Sweden
Telescope: Canon EF-S 18-135mm lens
Camera: Canon 600D
ISO: 200
Mount: Manfrotto 055 tripod
Exposure time: 6 sec
Other info: Lens set at 29mm and F/4.0
Processing: Processed in Photoshop CS6.