There is nothing unique about the techique in this photo. However what's in the photo is extremely rare. This extraordinary light phenomena I came across friday night as I skied down a mountain peak at Norefjell, Norway is not northern light. It's really rare and can happen if when weather get's extremely cold, and ice crystals in the air are shaped in special way. I was out after dark to ski, and didn't see any reason to bring my camera, so this Photo is taken with a Sony Xperia Z3. We also tried to take photo with a Iphone 6, but that wasn't possible. So some cred to Sony there.