Sunspot drawing of 1984-6-12

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https://doi.org/10.7891/e-manuscripta-140974



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1984-06-12
08:45
Hs 1304.6:1032
https://doi.org/10.7891/e-manuscripta-140974
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
140 8 13 B -11 90
142 8 9 B -7 53
143 2 2 B 14 116
144 3 3 B 2 49
4 21 27