Sunspot drawing of 1972-3-20

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https://doi.org/10.7891/e-manuscripta-97012



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1972-03-20
08:00
Hs 1304.5:4703
https://doi.org/10.7891/e-manuscripta-97012
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
79 4 B -21.6 90.2
83 5 C 4.1 94.9
84 4 B -7.3 54.4
86 6 C 7.2 26.3
87 11 B -8.1 60.1
88 7 A 10.0 27.3
89 11 B -19.7 16.1
91 24 D 7.7 329.6
92 1 D -12.5 316.9
93 8 C -8.5 70.3
10 81