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Astronomy Picture of the Day
A Solar Prominence from SOHO
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#109791
by
[z]Barbara Harris
@
01.06.2009 00:00
- nach oben -
A Solar Prominence from SOHO
Explanation: How can gas float above the Sun? Twisted
magnetic
fields arching from
the solar surface can
trap ionized gas, suspending it in huge looping structures.
These majestic plasma arches
are seen as prominences above the solar limb. In 1999 September,
this dramatic and detailed image
was recorded by the EIT experiment on board
the space-based SOHO observatory
in the light emitted by
ionized Helium
. It shows
hot plasma escaping
into space as a fiery prominence breaks free from
magnetic confinement
a hundred thousand kilometers above the Sun.
These awesome events
bear watching
as they can affect communications and power systems over
100 million kilometers
away on
Planet Earth
. Recently, our
Sun
has been
unusually quiet
. Free Lecture:
An APOD editor will review great space images this Friday in Kalamazoo, Michigan.
digg_url = 'http://apod.nasa.gov/apod/ap090531.html'; digg_skin = 'compact';
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