Sunspot drawing of 1987-3-1

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https://doi.org/10.7891/e-manuscripta-142911



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1987-03-01
08:00
Hs 1304.6:1838
https://doi.org/10.7891/e-manuscripta-142911
Observer : Marco Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
12 1 3 J 38 313
14 3 2 A -25 293
2 4 5