Sunspot drawing of 1961-10-20

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https://doi.org/10.7891/e-manuscripta-92721



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1961-10-20
07:30
Hs 1304.5:1495
https://doi.org/10.7891/e-manuscripta-92721
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
295 3 5 C 17.5 245.7
298 24 9 B 8.8 202.0
305 5 9 B -8.1 139.2
306 3 7 C 13.6 258.1
4 35 30