BABAK TAFRESHI / SCIENCE PHOTO LIBRARY BABAK TAFRESHI / SCIENCE PHOTO LIBRARY
Star trails over Schwerin Palace. Composite time-exposure image of the Schwerin Palace, Germany, under stars moving around the north celestial pole, marked by the star Polaris (upper left). Star trails are formed by the apparent motion of the stars in the sky as the Earth rotates on its axis. This image illustrates the star trails if both the Earth and sky were rotating separately.
Model release not required. Property release not required.