Sunspot drawing of 1983-3-17

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https://doi.org/10.7891/e-manuscripta-140386



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1983-03-17
09:00
Hs 1304.6:655
https://doi.org/10.7891/e-manuscripta-140386
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
64 2 3 B 13 44
65 5 6 B 18 360
66 33 31 D -13 307
67 34 30 C -7 283
68 1 3 J -11 271
5 75 73