Sunspot drawing of 1987-12-22

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https://doi.org/10.7891/e-manuscripta-143060



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1987-12-22
09:00
Hs 1304.6:2085
https://doi.org/10.7891/e-manuscripta-143060
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
147 1 4 J -34 63
150A 5 7 B -40 46
151A 1 1 A 22 6
3 7 12