Sunspot drawing of 1972-3-21

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https://doi.org/10.7891/e-manuscripta-97116



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1972-03-21
07:45
Hs 1304.5:4704
https://doi.org/10.7891/e-manuscripta-97116
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
83 10 D 3.9 95.4
84 1 A -6.8 55.5
86 4 C 6.9 26.3
87 7 B -9.1 58.0
88 15 B 9.9 27.7
89 31 B -19.1 16.7
91 30 D 7.6 330.7
92 1 A -12.5 317.5
93 5 B -8.4 70.1
94 2 A -17.9 38.2
95 1 A 15.5 7.9
11 107