Astronomy Picture of the Day



The Iron Sun

Bild Upload von 18.02.2016 21:43

Bild Note: 3 (1 Vote)

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zorg.ch
#49904 by @ 26.09.2004 00:00 - nach oben -
The Iron Sun


Explanation:

The
ultraviolet light
emitted by eleven times ionized iron at temperatures
over 2 million degrees Farenheit was used to record the above picture of the
Sun on September 22, 2001, the date of that year's
autumnal equinox.

The image was made by
the
EIT camera
onboard
the SOHO spacecraft, a space observatory which can continuously
observe the Sun.

Eleven times ionized iron is
atomic
iron
with eleven of its electrons stripped away.

Here the electrons are stripped by the
frantic collisions with other atoms and electrons
which occur at the extreme temperatures in
the
Solar Corona
.

Since electrons are negatively charged, the
resulting ionized iron atom is highly
positively charged.
Astronomer's "shorthand" for eleven times ionized iron is written
"Fe XII", the chemical
symbol
for iron followed by a

Roman
numeral 12 (Fe I is neutral iron).




Credit & Copyright
zorg.ch
#49905 by @ 26.09.2004 02:25 - nach oben -
isch jo vom finste.
zorg.ch
#49906 by @ 26.09.2004 10:39 - nach oben -
SOHO Spacecraft? WTF?
zorg.ch
#50019 by @ 26.09.2004 21:05 - nach oben -
SOHO: SOlar and Heliospheric Observatory
zorg.ch
#49907 by @ 26.09.2004 11:07 - nach oben -
elend
zorg.ch
#52978 by @ 14.10.2004 14:14 - nach oben -
Gits da Züg au in Wallpaper-Uflösig irgendwo?
zorg.ch
#52979 by @ 14.10.2004 14:25 - nach oben -
jo dä oberscht link isch amigs d'BIG version dävo...isch aber au nöd immer gad ä fetti uflösig
zorg.ch
#52981 by @ 14.10.2004 14:27 - nach oben -
datt bild hier sieht v.a. jenes gerastert aus... v.a. in der big-version.