Sunspot drawing of 1972-3-18

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https://doi.org/10.7891/e-manuscripta-97042



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1972-03-18
07:30
Hs 1304.5:4701
https://doi.org/10.7891/e-manuscripta-97042
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
77 3 J 16.3 119.0
78 5 C 13.7 109.7
79 4 A -21.0 90.8
83 15 C 5.1 92.3
84 5 C -6.7 54.7
86 6 J 7.0 28.1
87 9 B -9.9 59.8
88 9 A 10.3 30.2
89 10 B -19.5 17.5
90 1 A 12.9 45.5
91 8 B 8.2 328.3
11 75