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A beautiful trio of arcs, just beginning
their breakup phase, appear above the
northwestern horizon late on the night of
March 17/18, 2005 as light from the first
quarter moon illuminates one of my favorite
aurora shooting locations―a
snowy hillside near Wickersham Dome, Alaska.
Even though 2005 was near solar minimum―the
point in the sun's cycle where it is less
active―the
aurora were dancing quite dramatically
anyway. Their greenish color is
created when charged solar particles hit
oxygen atoms about 60 miles (100 km) above
our planet's surface, and is sometimes
bright enough to paint the shadows in the
snow with the same color.
On the left center of the frame appears the
Pleiades star cluster; near top center are
the stars of the constellation Perseus and
on the far right those of Andromeda.
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Date / Time: March 17/18, 2005 /
22:53:14 AST
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Photo Details: Canon 10D, Canon 24mm
f/1.4L lens, ISO 400, 6 seconds at f/1.4
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Processing Details: Noise Ninja
2.3.2, Photoshop CS2
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Location: Wickersham Dome trailhead,
Alaska, USA
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