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Astronomy Picture of the Day
A Large Tsunami Shock Wave on the Sun
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zorg.ch
#97074
by
[z]Barbara Harris
@
14.12.2006 00:00
- nach oben -
A Large Tsunami Shock Wave on the Sun
Explanation:
Tsunamis this large don't happen on Earth.
One week ago, a large solar flare from an Earth-sized
sunspot
produced a
tsunami
-type
shock wave that was spectacular even for the Sun.
Pictured above
, the
tsunami wave
was captured moving out from active region AR 10930 by the
Optical Solar Patrol Network
(OSPAN) telescope in
New Mexico
,
USA
.
The resulting
shock wave
, known technically as a
Moreton wave
, compressed and heated up gasses including
hydrogen
in the
photosphere
of the Sun, causing a momentarily brighter glow.
The
above image
was taken in a
very specific red color
emitted exclusively by hydrogen gas.
The
rampaging tsunami
took out some active
filaments
on the Sun,
although many re-established themselves later.
The
solar tsunami
spread at nearly one million kilometers per hour,
and circled the entire
Sun
in a matter of minutes.
Credit & Copyright