Sunspot drawing of 1987-9-14

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https://doi.org/10.7891/e-manuscripta-142795



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1987-09-14
07:30
Hs 1304.6:2016
https://doi.org/10.7891/e-manuscripta-142795
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
96 2 2 B 27 250
97 10 15 C -32 228
2 12 17