Sunspot drawing of 1972-3-31

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https://doi.org/10.7891/e-manuscripta-97052



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1972-03-31
08:00
Hs 1304.5:4714
https://doi.org/10.7891/e-manuscripta-97052
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
105 14 B -8.4 203.1
106 11 C -8.0 192.8
107 3 B -8.4 203.1
109 2 A -26.2 249.3
4 30