Sunspot drawing of 1977-6-13

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https://doi.org/10.7891/e-manuscripta-98887



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1977-06-13
05:30
Hs 1304.5:6310
https://doi.org/10.7891/e-manuscripta-98887
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
51 8 C -24.5 63.4
53 4 J -21.1 4.1
2 12