Sunspot drawing of 1987-2-26

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https://doi.org/10.7891/e-manuscripta-142916



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1987-02-26
13:30
Hs 1304.6:1835
https://doi.org/10.7891/e-manuscripta-142916
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
12 1 3 J 38 314
1 1 3