Beautiful long exposure of star trails

Beautiful long exposure. Star trails of the summer nights.

Taken in:

Heidelberg, germany

Taken by :

Sony Alpha dslt a77ii

Lens :

Tamron 10-24mm F/3.5-4.5 SP

Settings:

Aperture: F/3.5

Exposure: 25 seconds

Iso: 400

Focal length: 10mm.