The Aurora of March 23/24 1991- Scopeville, Kansas
- USA
Please click on images to
view larger versions.
It was not a particularly great
observing night at the Kansas Astrophotographers and Observers Society
dark sky site located 70 miles southwest of Kansas City. A first quarter
moon lit up the clear sky like a beacon and while we waited for it to sink
low in the western sky an evening of casual observing took place.
Our
dark sky observing site dubbed "Scopeville" was only three years old and
the newly completed sleeping quarters and warm-up room offered a nice break
from the March chill. Around midnight someone noticed that the faint white
sky glow of Kansas City far to the northeast seemed to be surrounded by
a pinkish cast. Within minutes the area had spread across the northern
horizon and bright white spikes of light began shooting up towards Polaris.
Bright green regions were seen near the tree line and the whole northern
sky began to turn into hundreds of shades of orange, reds and yellows.
Cameras were quickly stripped from telescopes and tripods located. Exposures
ranged from 20 seconds to a minute on Kodak Ektachrome slide film and color
negative asa 400 film. Nikkor 16mm, 28mm and 50mm were used for the shots,
all wide open at f2.8. The hardest part of shooting with the 16mm was trying
to keep the glare from the first quarter moon out of the frame. For
a little more than 2 hours the northern sky danced with color despite the
bright moon. The huge, bright white spikes were the highlights of the show
as they appeared quickly, grew and brightened and then disappeared just
as quickly. At times a few shimmering curtains moved through the green
regions close to the horizon. At it's peak,
the storm reached nearly from east to west and close to the zenith. Because
of the time (after midnight) and the bright moon this storm apparently
went un-noticed for the most part.
There were no reports in the media and after a few hours we had only the
photographs to remember it by. The short-lived aurora was a rare event
for Kansas… but little did we know that later that year the best was yet
to come.
November 8, 1991 - Powell
Observatory Aurora.
Journey to other Aurora
Pages.
Back
to the ICSTARS Aurora Section.
Return
to the ICSTARS Solar Section
|