![]() 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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