Some people see auroras in my images, others see more than that
One might be convinced this scene presages the ghosts due on Halloween. But
for Alaska resident Ulrike Haug, it's a fairly common site anytime the sky is
dark.
Haug photographed these auroras, also called Northern
Lights, on the night of Oct. 16-17. The colorful ripples and swirls are caused
by charged particles that ride a solar wind all the way from the Sun to Earth's
magnetic field, whose lines emanate from polar regions. There, the charged particles
excite oxygen and nitrogen in the atmosphere, turning on the lights [More].
That's the science. But it's the resulting natural art that is most wonderful.
"Some people see auroras in my images, others see more than that," Haug said
in an e-mail interview. "As the aurora dances in the sky, resembling a graceful
ballet, it takes on many forms and shapes. At times the aurora paints a fleeting
glimpse of realistic or surrealistic figures in the sky. Paired with a vivid
imagination the viewer sees more than the green lights, as in this case perhaps
a dragonfly or alien winged insect. This fascinates and motivates me to capture
the lights in their uniqueness. Each display is different and only the solar
wind knows what will happen next."
While residents at mid-latitudes rarely glimpse the aurora, Haug said they
are common in Fairbanks, where she lives -- even now that the Sun is more than
a year past its most recent peak of activity in an 11-year cycle.
In fact, this weekend promises to be a good time for residents at lower latitudes
to look for aurora, because at least two significant solar eruptions have unleashed
major
space storms expected to arrive Friday or Saturday. The intensity of solar
activity affects the intensity of the aurora, as well as how far away from the
poles they're visible. In extreme cases, folks see them from California and
even Texas.
Haug has more aurora images, including some for sale,
at AlaskaAurora.com.
-- Robert
Roy Britt
Image Credit and Copyright: Ulrike Haug
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