Sunspot drawing of 1987-8-26

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https://doi.org/10.7891/e-manuscripta-142819



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1987-08-26
08:00
Hs 1304.6:1997
https://doi.org/10.7891/e-manuscripta-142819
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
88 13 15 B 16 123
89 17 29 D 19 209
2 30 44