Sunspot drawing of 1987-3-3

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https://doi.org/10.7891/e-manuscripta-142935



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1987-03-03
08:15
Hs 1304.6:1840
https://doi.org/10.7891/e-manuscripta-142935
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
12 1 3 J 38 310
15 4 3 B -32 341
2 5 6