Sunspot drawing of 1998-3-31

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https://doi.org/10.7891/e-manuscripta-149979



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1998-03-31
07:30
Hs 1304.6:5275
https://doi.org/10.7891/e-manuscripta-149979
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
57 31 33 F -25 229
59 4 9 D -20 134
60 12 11 C -22 145
61 1 2 A -21 115
4 48 55