Sunspot drawing of 1972-7-21

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https://doi.org/10.7891/e-manuscripta-96989



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1972-07-21
08:45
Hs 1304.5:4815
https://doi.org/10.7891/e-manuscripta-96989
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
230 6 A 8.4 244.8
231 10 J -9.9 240.3
234 19 C -9.3 227.8
238 15 C 13.1 232.9
240 2 A -13.3 273.5
241 3 J 4.5 119.0
6 55