Sunspot drawing of 1983-4-5

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https://doi.org/10.7891/e-manuscripta-140424



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1983-04-05
07:00
Hs 1304.6:671
https://doi.org/10.7891/e-manuscripta-140424
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
78 10 16 C -17 125
86 15 24 D -12 36
89 1 2 A -15 5
3 26 42