Sunspot drawing of 1977-8-31

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https://doi.org/10.7891/e-manuscripta-98890



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1977-08-31
11:00
Hs 1304.5:6381
https://doi.org/10.7891/e-manuscripta-98890
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
99 2 A -23.9 102.8
101 5 B -25.9 93.5
102 1 A 28.1 113.8
103 3 J 24.0 316.2
4 11