Sunspot drawing of 1977-5-15

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https://doi.org/10.7891/e-manuscripta-98742



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1977-05-15
08:00
Hs 1304.5:6290
https://doi.org/10.7891/e-manuscripta-98742
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
39 5 C -20.6 18.9
41 6 B -22.1 8.6
42 4 A 30.7 18.9
3 15