[SFDXA] "Cat's eye" view of 9-march-2016 solar eclipse
Kai
k.siwiak at ieee.org
Tue Apr 12 11:11:28 EDT 2016
Combined Solar Eclipse Corona from Earth and Space
< http://apod.nasa.gov/apod/ap160412.html >
Image Credits: J. Vilinga (Angola, IAP), LASCO, NRL, SOHO, ESA, NASA;
Processing: R. Wittich; Composition & Copyright: S. Koutchmy (IAP, CNRS)
"Explanation: Sometimes, a total eclipse is a good time to eye the Sun. Taking
advantage of an unusual juxtaposition of Earth, Moon and Sun, the featured image
depicts the total solar eclipse that occurred last month as it appeared --
nearly simultaneously -- from both Earth and space. The innermost image shows
the total eclipse from the ground, with the central pupil created by the bright
Sun covered by a comparatively dark Moon. Surrounding the blocked solar disk is
the tenuous corona of Sun imaged in white light, easily visible from the ground
only during an eclipse. Normally, this corona is hard to track far from the Sun,
but the featured montage matches it to false-colored observations of the Sun
from NASA and ESA's space-based, Sun-orbiting, Solar and Heliospheric
Observatory (SOHO). Observations like this allow the study of the constantly
changing magnetic activity both near and far from the Sun, the same activity
that ultimately drives Earth's auroras. "
Enjoy!
73
Kai, KE4PT
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