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Astronomy Picture of the Day
Discover the cosmos!
Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.
2020/01/05
A Starry Night of Iceland
Image credits:
Stephane Vetter
,
TWAN
,
Nuits sacrees
Explanation:
On some nights, the sky is the best show in town. On this night, the sky was not only the best show in town, but a composite image of the sky
won an international competition
for landscape astrophotography. The
featured winning image
was taken in 2011 over
J�kuls�rl�n
, the largest
glacial lake
in
Iceland
. The photographer combined six exposures to capture not only two green
auroral rings
, but their reflections off the serene lake. Visible in the
distant background
sky is the band of our
Milky Way Galaxy
and the
Andromeda galaxy
. A powerful
coronal mass ejection
from the Sun
caused auroras
to be seen as far south as
Wisconsin
, USA. As the Sun progresses away from its
current low in surface activity
toward a
solar maximum
a few years away, many more
spectacular
images
of
aurora
are expected.
Authors & editors:
Robert J. nemiroff
(MTU)
&
Jerry T. Bonnell
(UMCP)
Web designed by Simon G. Kupisz, 2020
NASA Official:
Phillip Newman
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ASD
at
NASA
/
GSFC
&
Michigan Tech. U.