Sunspot drawing of 1961-10-1

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https://doi.org/10.7891/e-manuscripta-92678



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1961-10-01
15:15
Hs 1304.5:1479
https://doi.org/10.7891/e-manuscripta-92678
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
279 2 A 4.7 117.8
281 9 C 11.7 86.6
282 22 D 12.8 66.9
3 33