APOD 2.1

This picture posted on October 23, 2013 depicts the northern celestial hemisphere. The picture was taken using a series of 30-second consecutive exposures to form the star trails shown in the picture. In what appears to be the center of the star trails lies Polaris, the "Northern Star". Polaris is a star which is a part of the constellation Ursa Minor, more commonly known as the "Little Dipper" constellation. In several thousands of years later, Polaris will no longer be the "Northern Star" due to Earth's precession.