Sunspot drawing of 1987-5-4

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https://doi.org/10.7891/e-manuscripta-142940



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1987-05-04
08:30
Hs 1304.6:1896
https://doi.org/10.7891/e-manuscripta-142940
Observer : Michele Bianda
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
41 1 4 J -23 178
42 1 5 J -33 123
2 2 9