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.
Curtains of aurora during an active storm on February 18, 2018 from the Churchill Northern Studies Centre, in the early evening in the last of the twilight. This night the aurora was brightest early in the evening. The Big Dipper is at left. This is a single frame from a 725-frame time-lapse with the Nikon D750 at ISO 3200 and Sigma 14mm Art lens at f/1.8. Exposures were 2 seconds.
