Sunspot drawing of 1972-4-5

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https://doi.org/10.7891/e-manuscripta-97140



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1972-04-05
10:00
Hs 1304.5:4719
https://doi.org/10.7891/e-manuscripta-97140
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
105 9 J -9.7 197.1
106 2 J -9.7 197.1
110 2 B 0.6 206.8
111 3 A -9.2 126.5
4 16