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Replay Collection

Summer/Fall

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About These Movies • Aurora Replays are short, downloadable Quicktime .mov files showing the natural motion of auroras using time-lapse digital photography. Created by James Pugsley, President of Astronomy North, this footage is used to monitor geomagnetic activity in Earth’s upper atmosphere. These low resolution videos have been developed for educational purposes and are free to download. We ask that you do not modify these videos in any way. To play one of the following replays, just click on a photo.

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August Samples

Saturday, August 29, 2009

Yellowknife, Northwest Territories
11:58 p.m. / 2:33 a.m.

A colourful surge kicks off a full night of auroral activity near Yellowknife.

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September Samples

Thursday, September 6, 2007

Yellowknife, Northwest Territories
10:34 p.m. / 12:14 a.m.

A series of green auroral arcs and bands fill the sky, contrasted by clouds above the Ingraham Trail.

Friday, September 7, 2007

Yellowknife, Northwest Territories
11:05 p.m. / 11:57 p.m.

A textbook substorm sweeps across the skies in just a few short minutes, leaving a blanket of particles in its path.

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October Samples

Tuesday, October 3, 2007

Yellowknife, Northwest Territories
7:34 p.m. / 8:53 p.m.

An early substorm filled Yellowknife’s skies for over an hour. A surge from the East with North/South shift of the magnetic field line.

Friday, October 13, 2006

Yellowknife, Northwest Territories
11:09 p.m. / 12:28 a.m.

A distant view of the Diamond Capital of North America beneath an active auroral band.

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For more information • To request a high resolution copy of an Aurora Replay for educational purposes, e-mail your name, telephone number, organization and how the video will be used to info@astronomynorth.com.










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