Sunspot drawing of 1973-6-13

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https://doi.org/10.7891/e-manuscripta-97378



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1973-06-13
08:45
Hs 1304.5:5091
https://doi.org/10.7891/e-manuscripta-97378
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
130 18 B 13.1 263.8
131 11 C 15.3 208.7
132 3 J -15.2 209.5
135 19 D 12.4 151.7
139 2 A -10.7 189.6
5 53