Sunspot drawing of 1986-10-21

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https://doi.org/10.7891/e-manuscripta-142243



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1986-10-21
08:00
Hs 1304.6:1733
https://doi.org/10.7891/e-manuscripta-142243
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
56 35 50 E 23 231
57 3 5 C -27 194
2 38 55