Sunspot drawing of 1973-12-27

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https://doi.org/10.7891/e-manuscripta-97426



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1973-12-27
08:30
Hs 1304.5:5264
https://doi.org/10.7891/e-manuscripta-97426
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
233 2 A 6.8 199.5
234 7 C -18.2 193.6
238 4 B -8.9 186.8
3 13