태양 전면 주간 UV (211A) 동영상 (weekly solar full-disk movie in UV : 2026. 4. 20 ~ 4. 26 #solar#태양#UV#자외선
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태양 전면 주간 UV (211A) 동영상 (weekly solar full-disk movie in UV : 2026. 4. 20 ~ 4. 26 #solar#태양#UV#자외선
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