Sunspot drawing of 1969-2-13

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https://doi.org/10.7891/e-manuscripta-95742



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1969-02-13
09:15
Hs 1304.5:3765
https://doi.org/10.7891/e-manuscripta-95742
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
46 24 D 11.8 267.3
59 22 D 16.3 188.8
60 4 B -11.3 157.8
61 9 B -14.3 123.9
4 59