Sunspot drawing of 1974-11-21

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https://doi.org/10.7891/e-manuscripta-97952



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1974-11-21
09:00
Hs 1304.5:5537
https://doi.org/10.7891/e-manuscripta-97952
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
188 15 C 12.7 99.9
189 11 20 B 0.7 73.7
190 4 B 6.5 48.0
3 11 39