Darkfilament To Prominence
Taken by masa nakamura on October 21, 2012 @ Otawara, Tochigi, Japan
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Details:
A dark filament on Oct.19 turned to the western edge and became a prominence.
Photo: Nikn Coolpix990, Coronado Solarmax40, Borg50ED, PL18mm Eyepiece. 1/4s exposure, each image
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