Sunspot drawing of 1972-10-20

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https://doi.org/10.7891/e-manuscripta-97174



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1972-10-20
09:45
Hs 1304.5:4893
https://doi.org/10.7891/e-manuscripta-97174
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
338 12 D -6.2 66.3
339 12 C -15.4 54.9
342 1 A -2.8 44.6
343 10 B -17.1 22.4
4 35