Sunspot drawing of 1975-10-21

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https://doi.org/10.7891/e-manuscripta-97989



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1975-10-21
07:15
Hs 1304.5:5817
https://doi.org/10.7891/e-manuscripta-97989
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
96 3 J 4.7 96.9
1 3