Sunspot drawing of 1962-4-20

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https://doi.org/10.7891/e-manuscripta-92884



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1962-04-20
14:00
Hs 1304.5:1632
https://doi.org/10.7891/e-manuscripta-92884
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
53 3 J 10.4 29.3
54 33 E 7.0 331.3
55 7 C 9.4 304.4
56 2 B 10.5 288.7
57 2 A 10.3 320.4
58 3 B -9.3 314.7
6 50