Sunspot drawing of 1987-8-6

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https://doi.org/10.7891/e-manuscripta-142872



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1987-08-06
09:45
Hs 1304.6:1978
https://doi.org/10.7891/e-manuscripta-142872
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
77 2 4 J 15 123
78 25 30 C -23 45
2 27 34