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Астронет: Астрономическая картинка дня Северное сияние над Норвегией в виде сказочного существа http://variable-stars.ru/db/msg/1911277/eng |
Credit & Copyright: Ole C. Salomonsen
(Arctic Light Photo)
Explanation:
It was Halloween and the sky looked like a creature.
Exactly which creature, the
astrophotographer was unsure (but
possibly you can suggest one).
Exactly what caused this
eerie apparition in 2013 was sure:
one of the best
auroral displays that year.
This
spectacular aurora had an unusually high degree of
detail.
Pictured
here, the vivid green and purple
auroral colors are caused by high atmospheric
oxygen and
nitrogen
reacting to a burst of incoming
electrons.
Birch trees in
Tromsц,
Norway
formed an also
eerie foreground.
Frequently, new photogenic auroras accompany new
geomagnetic storms.
Almost Hyperspace:
Random APOD Generator
Authors & editors:
Robert Nemiroff
(MTU) &
Jerry Bonnell
(USRA)
NASA Web Site Statements, Warnings,
and Disclaimers
NASA Official: Jay Norris.
Specific
rights apply.
A service of:
LHEA at
NASA /
GSFC
& Michigan Tech. U.