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From: Mike Jr on 5 Jan 2010 07:18
"Ground-based observations reveal the first images of the solar corona
in the near-infrared emission line of highly ionized iron, or Fe XI
789.2 nm. The observations were taken during total solar eclipses in
2006, 2008, and 2009 by astrophysicist Adrian Daw of NASA’s Goddard
Space Flight Center in Greenbelt, Md., with an international team of
scientists led by Shadia Habbal from the University of Hawaii’s
Institute for Astronomy (IfA).

"The first image of the corona in Fe XI 789.2 nm was taken during the
total solar eclipse of March 29, 2006," said Daw.

The images revealed some surprises. Most notably, that the emission
extends out at least three solar radii -- that’s one-and-a-half times
the sun’s width at its equator, or middle -- above the surface of the
sun, and that there are localized regions of enhanced density for
these iron ions."

http://www.nasa.gov/centers/goddard/news/topstory/2010/aas-eclipse.html

--Mike Jr.
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