Sunspot drawing of 2012-12-21

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https://doi.org/10.7891/e-manuscripta-157260



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2012-12-21
09:00
Hs 1304.6:9760
https://doi.org/10.7891/e-manuscripta-157260
Observer : Marco Cagnotti
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
323 12 21 E -7.1 112.1
324 2 3 J -12.9 110.1
326 7 14 C 9.8 63.3
3 21 38