Sunspot drawing of 1971-2-24

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https://doi.org/10.7891/e-manuscripta-96724



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1971-02-24
08:45
Hs 1304.5:4387
https://doi.org/10.7891/e-manuscripta-96724
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
54 3 J -12.9 201.5
55 8 B -13.7 184.2
56 30 E -17.5 139.3
57 7 H -8.3 126.2
60 4 J -10.1 107.1
62 14 H 6.7 71.7
63 2 A -4.3 204.7
64 6 B 4.6 145.7
8 74