Sunspot drawing of 1983-12-1

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https://doi.org/10.7891/e-manuscripta-140487



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1983-12-01
09:00
Hs 1304.6:875
https://doi.org/10.7891/e-manuscripta-140487
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
306 4 10 C 17 119
307 3 9 C 11 98
2 7 19