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Credit & Copyright: Greg Piepol
(sungazer.net)
Explanation:
An unusually active sunspot region is now crossing the Sun.
The region, numbered 875,
is larger than the Earth and has
produced
several solar flares over the past week.
It should take a few more days for
Sunspot 875 to finish crossing
the solar disk.
The above image of the Sun
was taken last Wednesday in a very
specific color of red light
to bring up detail.
Sunspot 875,
in the midst of erupting a large
Class C solar flare,
can be seen as the dark region to the upper right.
In the above image,
relatively cool regions appear dark
while hot regions appear bright.
On the far left,
solar prominences
are visible hovering above the Sun's surface.
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NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Based on Astronomy Picture
Of the Day
Publications with keywords: sunspot - flare
Publications with words: sunspot - flare
See also: