Sunspot drawing of 1984-10-21

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https://doi.org/10.7891/e-manuscripta-141168



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1984-10-21
10:15
Hs 1304.6:1148
https://doi.org/10.7891/e-manuscripta-141168
Observer : Marco Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
211 3 6 C 4 199
212 4 4 B 3 189
2 7 10