Sunspot drawing of 1971-8-11

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https://doi.org/10.7891/e-manuscripta-96792



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1971-08-11
07:45
Hs 1304.5:4538
https://doi.org/10.7891/e-manuscripta-96792
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
240 9 J -8.9 98.5
241 12 C 12.0 123.6
242 13 C -12.0 91.0
244 1 A -10.9 77.0
246 6 B 19.8 42.0
247 4 C 12.7 352.2
6 45