Sunspot drawing of 1961-9-28

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https://doi.org/10.7891/e-manuscripta-92686



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1961-09-28
09:45
Hs 1304.5:1477
https://doi.org/10.7891/e-manuscripta-92686
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
272 3 J 18.2 204.8
276 5 C 6.9 188.4
279 10 B 3.4 118.4
281 17 D 11.9 87.1
282 21 D 13.8 66.9
283 1 A 0.7 79.3
6 57