Sunspot drawing of 1961-8-4

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https://doi.org/10.7891/e-manuscripta-92663



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1961-08-04
07:30
Hs 1304.5:1423
https://doi.org/10.7891/e-manuscripta-92663
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
221 2 A 23.0 206.7
224 6 B -14.7 182.7
226 2 A -6.2 61.6
3 10