Sunspot drawing of 1971-1-18

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https://doi.org/10.7891/e-manuscripta-96673



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1971-01-18
09:30
Hs 1304.5:4359
https://doi.org/10.7891/e-manuscripta-96673
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
9 3 J 19.0 298.1
20 38 E 17.2 224.6
21 4 B 17.6 210.9
22 8 J 9.5 190.8
23 10 D -13.2 190.3
24 4 B 8.1 275.6
6 67