Diurnal motion around the North Celestial Pole

Ten hours of diurnal motion of the stars very close to the NCP. This was taken through a telescope aimed at the North Celestial Pole, and a 15-second image taken over the course of the night. The view is so narrow that Polaris is well outside the frame. I used a 6"f/5 reflector and a QHYiii290C CMOS camera for the sequence.