Sunspot drawing of 1987-3-2

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https://doi.org/10.7891/e-manuscripta-142813



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1987-03-02
09:30
Hs 1304.6:1839
https://doi.org/10.7891/e-manuscripta-142813
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
12 3 6 J 38 312
15 2 4 B -32 344
2 5 10