Sunspot drawing of 1983-9-23

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https://doi.org/10.7891/e-manuscripta-140476



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1983-09-23
08:15
Hs 1304.6:813
https://doi.org/10.7891/e-manuscripta-140476
Observer : Sergio Cortesi
Seeing (SIDC) : 5
Group Not Weighted Weighted Type Latitude Carrington Longit.
258 4 4 B -9 336
260 4 5 B -16 299
261 25 36 D -20 270
3 33 45