Sunspot drawing of 1972-4-18

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https://doi.org/10.7891/e-manuscripta-97151



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1972-04-18
07:30
Hs 1304.5:4729
https://doi.org/10.7891/e-manuscripta-97151
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
119 2 A -10.1 58.8
120 4 J 7.6 27.1
123 3 A -11.6 331.4
125 9 B -6.7 6.0
126 26 B -10.6 322.1
127 1 A -16.9 22.0
6 45