Sunspot drawing of 1987-9-22

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https://doi.org/10.7891/e-manuscripta-142840



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1987-09-22
07:00
Hs 1304.6:2024
https://doi.org/10.7891/e-manuscripta-142840
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
101 1 3 J 13 133
102 3 6 C -29 192
103 1 1 A -22 70
3 5 10