On October 8, 2014 active regions on the sun gave it the appearance of a
jack-o'-lantern. This image is a blend of 171 and 193 ångström light as
captured by the Solar Dynamics Observatory.
Credit: NASA/GSFC/SDO
Active regions on the
sun combined to look something like a jack-o-lantern’s face on Oct. 8, 2014.
The active regions appear brighter because those are areas that emit more light
and energy — markers of an intense and complex set of magnetic fields hovering
in the sun’s atmosphere, the corona. This image blends together two sets of
wavelengths at 171 and 193 Ångströms, typically colorized in gold and yellow,
to create a particularly Halloween-like appearance.
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