Sunspot drawing of 1973-3-26

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https://doi.org/10.7891/e-manuscripta-97330



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1973-03-26
10:00
Hs 1304.5:5021
https://doi.org/10.7891/e-manuscripta-97330
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
74 6 J 14.9 224.9
76 7 B 4.4 146.5
77 4 H 6.8 146.4
3 17