Sunspot drawing of 1977-10-23

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https://doi.org/10.7891/e-manuscripta-98810



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1977-10-23
09:35
Hs 1304.5:6427
https://doi.org/10.7891/e-manuscripta-98810
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
137 14 C -23.4 84.8
139 6 B -25.2 39.9
2 20