Sunspot drawing of 1972-4-17

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https://doi.org/10.7891/e-manuscripta-96991



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1972-04-17
09:15
Hs 1304.5:4728
https://doi.org/10.7891/e-manuscripta-96991
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
119 3 A -10.4 55.1
120 3 J 7.5 27.5
123 4 A -12.0 333.1
124 1 A -17.7 29.7
125 12 B -7.0 7.5
126 20 C -10.6 321.2
6 43