Sunspot drawing of 1985-2-21

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https://doi.org/10.7891/e-manuscripta-141663



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1985-02-21
10:45
Hs 1304.6:1232
https://doi.org/10.7891/e-manuscripta-141663
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
13 4 5 B -9 27
14 13 25 D 2 296
2 17 30