Sunspot drawing of 1970-12-23

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https://doi.org/10.7891/e-manuscripta-96554



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1970-12-23
08:45
Hs 1304.5:4337
https://doi.org/10.7891/e-manuscripta-96554
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
522 J 18.8 291.2
524 16 C 13.7 283.1
529 2 A -9.4 265.5
530 14 B -9.5 228.5
531 2 A 19.4 235.8
533 16 D 23.5 293.4
535 8 B 18.0 214.4
7 58