Sunspot drawing of 1969-9-12

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https://doi.org/10.7891/e-manuscripta-95713



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1969-09-12
07:45
Hs 1304.5:3950
https://doi.org/10.7891/e-manuscripta-95713
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
379 5 J 22.1 343.2
381 30 F -33.1 323.6
385 10 J -18.7 248.2
386 8 D 14.7 233.3
388 6 C -1.8 218.9
389 2 A -9.1 242.9
6 61