Sunspot drawing of 1983-12-13

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https://doi.org/10.7891/e-manuscripta-140506



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1983-12-13
08:45
Hs 1304.6:885
https://doi.org/10.7891/e-manuscripta-140506
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
312 6 4 B -12 19
314 6 7 B 11 57
315 14 19 C 3 334
316 36 21 B -14 12
317 2 6 J -14 289
318 1 2 A -17 281
6 65 59