Sunspot drawing of 1963-8-21

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https://doi.org/10.7891/e-manuscripta-93767



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1963-08-21
08:30
Hs 1304.5:2068
https://doi.org/10.7891/e-manuscripta-93767
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
108 7 C -11.4 32.2
111 5 B -6.6 359.1
112 5 A -8.0 303.2
113 14 C 7.5 3.0
4 31