Sunspot drawing of 1973-5-16

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https://doi.org/10.7891/e-manuscripta-97474



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1973-05-16
07:45
Hs 1304.5:5067
https://doi.org/10.7891/e-manuscripta-97474
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
116 14 C -9.5 198.2
117 3 J 11.8 153.3
118 19 D 9.3 146.6
3 36