Sunspot drawing of 1961-12-9

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https://doi.org/10.7891/e-manuscripta-92734



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1961-12-09
12:30
Hs 1304.5:1529
https://doi.org/10.7891/e-manuscripta-92734
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
328 6 D -10.3 326.7
331 8 C 15.4 315.8
333 4 J 8.1 322.8
334 3 J 10.5 326.9
4 21