Current Alaskan Time
SP Moving Images
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This figure shows an annual change of duration of the night at Poker Flat Research Range in Alaska.
A long-night period from autumn to spring is suitable for aurora watching.
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(2010.11.24)New camera ready
(13 Feb 2008) Maintenance: Sorry for the camera still in trouble!
Date : 2004/03/11
Date : 2008/08/11
Special Editions of Aurora Moving Images
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