Curtain forming in N |
Curtain changing shape |
Rays in SW |
Green and red in N |
Fan developing over NW horizon |
Fan over NW horizon |
Curtains forming in NW |
Multiple bright curtain |
Green and red in NW |
Camera and Lens
A mechanical camera such as the FM2 is preferred, as electronic cameras often fail when the temperature drops below freezing. The temperature on the night these pictures were taken was -5 C. |
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Film and Exposures
The structures of the curtains, fans, arcs and rays changed over time periods ranging from a few seconds to many minutes. Exposures of more than a minute would give just a blurry glow in the sky. |
Steve Barrett February 2003 |
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