Berkeley Observatory

Astronomy in the 21st Century

Aurora Borealis

Location : Chena Hot Springs, Alaska, USA.

The film used was Fuji MS 100/1000, exposed at 800 ASA. The camera was a Zenith B, used in preference to an electronic camera due to the low temperatures experienced, about -30°F at night. The camera was mounted a tripod, exposures of 30 second were controlled by cable release.