Labels:earth | perforation | person | toothbrush OCR: SUNSPOT relatively dark area on the photosphere of the Sun iconsisting 10 dari central umbra surrounded DY penumbra They occur in an (approximately) 11-year usually appear n groups. 'and have lifetime ranging from few days to several months Sunspots'are associated with strong fields See also faculae aud spicules Sunspot SUNSPGT cark cycle lelds taculae
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