Sunspot drawing of 1987-1-25

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https://doi.org/10.7891/e-manuscripta-142792



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1987-01-25
09:45
Hs 1304.6:1815
https://doi.org/10.7891/e-manuscripta-142792
Observer : Marco Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
4A 6 6 B -25 125
7 1 1 A 0 120
8 3 1 A 13 359
3 10 8