Sunspot drawing of 1969-4-28

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https://doi.org/10.7891/e-manuscripta-95756



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1969-04-28
14:30
Hs 1304.5:3821
https://doi.org/10.7891/e-manuscripta-95756
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
159 14 B 11.2 297.3
161 37 H 7.3 276.0
164 25 B 9.6 336.6
166 6 B 19.1 225.5
4 82