Sunspot drawing of 1971-6-11

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https://doi.org/10.7891/e-manuscripta-96803



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1971-06-11
08:00
Hs 1304.5:4479
https://doi.org/10.7891/e-manuscripta-96803
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
170 3 J -0.1 222.1
171 4 J -7.1 200.2
177 4 A 14.8 144.1
3 11