Sunspot drawing of 1961-9-17

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https://doi.org/10.7891/e-manuscripta-92645



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1961-09-17
07:00
Hs 1304.5:1466
https://doi.org/10.7891/e-manuscripta-92645
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
267 63 29 C 14.6 283.5
268 51 28 F -10.4 299.9
269 4 7 C -13.9 310.7
270 15 7 B 19.9 316.8
271 4 4 B 10.3 332.1
272 1 3 J 19.1 206.7
6 138 78