Sunspot drawing of 1969-10-20

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https://doi.org/10.7891/e-manuscripta-95726



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1969-10-20
07:15
Hs 1304.5:3985
https://doi.org/10.7891/e-manuscripta-95726
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
428 2 B 3.2 166.5
430 6 C -29.9 196.4
432 17 C 10.3 87.1
433 3 B 3.8 152.8
434 44 E 9.8 68.9
435 4 B 19.3 219.3
436 3 B -10.4 140.5
437 2 A 25.3 132.8
438 3 A -13.4 60.1
9 84