Sunspot drawing of 1969-8-12

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https://doi.org/10.7891/e-manuscripta-95737



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1969-08-12
13:15
Hs 1304.5:3919
https://doi.org/10.7891/e-manuscripta-95737
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
331 15 C -21.2 47.7
340 12 D -31.5 3.6
342 4 J 9.2 286.8
343 9 B -14.8 301.3
346 2 A 5.7 15.6
347 1 A 12.6 39.3
348 3 C -15.3 256.7
7 46