Sunspot drawing of 1987-8-2

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https://doi.org/10.7891/e-manuscripta-142815



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1987-08-02
09:30
Hs 1304.6:1974
https://doi.org/10.7891/e-manuscripta-142815
Observer : Marco Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
74 2 3 J 29 146
77 15 22 D 16 121
78 6 11 D -23 47
3 23 36