Sunspot drawing of 1987-10-24

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https://doi.org/10.7891/e-manuscripta-143002



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1987-10-24
09:00
Hs 1304.6:2042
https://doi.org/10.7891/e-manuscripta-143002
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
115 2 2 A -36 89
116 1 1 A -42 114
118 4 10 D 31 359
3 7 13