Sunspot drawing of 1971-6-9

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https://doi.org/10.7891/e-manuscripta-96700



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1971-06-09
09:00
Hs 1304.5:4477
https://doi.org/10.7891/e-manuscripta-96700
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
170 4 J 221.6
171 6 C -6.3 198.6
175 6 B 15.3 222.3
3 16