Sunspot drawing of 1977-11-20

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https://doi.org/10.7891/e-manuscripta-98697



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1977-11-20
08:50
Hs 1304.5:6451
https://doi.org/10.7891/e-manuscripta-98697
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
149 2 A 38.4 76.5
154 18 C 22.9 61.9
158 1 A 35.7 66.3
3 21