Sunspot drawing of 1993-6-21

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https://doi.org/10.7891/e-manuscripta-147462



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1993-06-21
12:15
Hs 1304.6:3804
https://doi.org/10.7891/e-manuscripta-147462
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
171 2 1 A 12 193
172 14 16 C -17 191
175 2 1 A 9 128
3 18 18