Sunspot drawing of 1971-3-11

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https://doi.org/10.7891/e-manuscripta-96909



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1971-03-11
08:00
Hs 1304.5:4402
https://doi.org/10.7891/e-manuscripta-96909
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
79 10 D -16.3 263.3
80 17 C -7.6 295.5
81 3 J 18.8 241.4
82 3 J -4.3 212.8
4 33