Sunspot drawing of 1981-3-18

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https://doi.org/10.7891/e-manuscripta-139099



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1981-03-18
09:15
Hs 1304.6:70
https://doi.org/10.7891/e-manuscripta-139099
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
120 2 6 D 9 313
122 1 1 A -5 272
124A 14 15 D 13 263
132 1 1 A -15 286
135 16 17 H 8 208
137 5 5 C 14 191
138 11 14 D 19 176
139 10 12 C 11 166
8 60 71