Sunspot drawing of 1960-4-20

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https://doi.org/10.7891/e-manuscripta-91560



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1960-04-20
07:00
Hs 1304.5:1008
https://doi.org/10.7891/e-manuscripta-91560
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
199 19 E -11.6 279.5
202 22 C 10.0 237.2
203 9 B 12.2 241.6
207 31 E 22.2 223.5
212 4 B 19.3 238.5
215 2 B 5.6 232.5
216 1 A 17.3 255.5
217 1 A 11.5 254.5
218 1 A -21.9 239.3
219 7 B 7.5 214.5
10 97