Sunspot drawing of 1969-12-17

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https://doi.org/10.7891/e-manuscripta-95818



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1969-12-17
13:00
Hs 1304.5:4032
https://doi.org/10.7891/e-manuscripta-95818
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
505 3 B -11.7 112.4
506 43 D -12.2 89.9
507 4 J 6.2 90.0
510 3 B 18.0 89.1
511 7 C 12.1 79.5
513 26 D 12.1 63.4
515 3 A -26.9 79.0
7 89