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Patricio Leon
Santiago, Chile
10:30 am

Equipment Details:

Newt 4.5"+ solar film, 1/640s ISO100

Post-processing Details:

crop, B/C

Image Details:

during the last 24 hours sunspot AR3645 appeared from seemingly nowhere and rapidly became the biggest in the solar face, left of center in the image; very good seeing, resolution is about 2 arcseconds