Sunspot drawing of 1970-5-21

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https://doi.org/10.7891/e-manuscripta-96465



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1970-05-21
07:15
Hs 1304.5:4153
https://doi.org/10.7891/e-manuscripta-96465
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
196 3 J 19.0 298.3
203 3 J -8.2 279.7
204 7 B -12.3 274.8
209 60 E 16.3 257.7
212 15 J 14.1 200.2
213 4 J -15.2 299.4
214 21 B -10.5 239.7
217 6 B -9.2 210.0
219 12 B 14.0 165.0
220 3 A 4.3 217.1
221 1 A -22.6 201.5
222 3 J 16.4 146.6
223 1 A 21.7 221.8
13 139