bild

A dim red and green aurora from Dinosaur Provincial Park, Alberta, on August 29/30, 2021. There were expectations of a bigger display this night, but litte came to pass! Capella is rising at centre; Perseus is at top right...This is a stack of 4 exposures for the ground to smooth noise and one exposure for the sky, all 30 seconds at f/2.8 with the Canon 15-35mm RF lens at 25mm and the Canon R6 at ISO 4000. (KEYSTONE/VWPICS/Alan Dyer)