Sunspot drawing of 1961-3-21

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https://doi.org/10.7891/e-manuscripta-92567



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1961-03-21
07:30
Hs 1304.5:1297
https://doi.org/10.7891/e-manuscripta-92567
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
66 5 C 3.9 152.1
75 2 A -21.5 80.7
76 5 C 8.6 64.4
77 7 D 7.7 122.8
78 2 A -10.4 117.3
79 6 D 7.3 49.1
6 27