Sunspot drawing of 1987-2-27

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https://doi.org/10.7891/e-manuscripta-142945



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1987-02-27
09:30
Hs 1304.6:1836
https://doi.org/10.7891/e-manuscripta-142945
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
12 1 3 J 38 315
13 3 2 B -8 25
14 1 1 A -24 291
3 5 6