Sunspot drawing of 1961-9-18

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https://doi.org/10.7891/e-manuscripta-92682



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1961-09-18
06:30
Hs 1304.5:1467
https://doi.org/10.7891/e-manuscripta-92682
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
267 23 C 14.5 283.1
268 15 C -10.5 300.8
269 3 B -15.5 312.5
270 3 B 20.0 319.2
272 3 J 19.1 206.4
273 3 B 20.4 281.0
274 3 B 14.8 210.1
7 53