Sunspot drawing of 1989-4-15

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https://doi.org/10.7891/e-manuscripta-144544



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1989-04-15
08:00
Hs 1304.6:2499
https://doi.org/10.7891/e-manuscripta-144544
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
159 1 2 A -15 255
167 3 5 B 35 228
173 11 18 D -23 155
174 3 7 C 13 143
175 10 15 C 16 204
176 17 30 D -19 162
177 15 34 E 9 126
178 3 7 C -30 249
8 63 118