A bright display of an auroral arc across the northern horizon from the Churchill Northern Studies Centre. The Big Dipper, Little Dipper and Polaris are at centre. This is a single frame from a 380-frame time-lapse. With the 14mm Sigma Art lens at f/1.8 and Nikon D750 at ISO 3200 for 2 seconds.
A bright display of an auroral arc across the northern horizon from the Churchill Northern Studies Centre. The Big Dipper, Little Dipper and Polaris are at centre. The lower edge of the arc shows a pink fringe from nitrogen molecules. This is a single frame from a 380-frame time-lapse. With the 14mm Sigma Art lens at f/1.8 and Nikon D750 at ISO 3200 for 2 seconds.
