Sunspot drawing of 1983-12-4

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https://doi.org/10.7891/e-manuscripta-140481



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1983-12-04
08:30
Hs 1304.6:878
https://doi.org/10.7891/e-manuscripta-140481
Observer : Marco Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
306 5 5 B 17 118
307 1 1 A 11 94
308 1 2 A -1 24
3 7 8