Sunspot drawing of 1987-5-27

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https://doi.org/10.7891/e-manuscripta-142909



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1987-05-27
07:15
Hs 1304.6:1914
https://doi.org/10.7891/e-manuscripta-142909
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
47 19 28 D 29 338
50 15 16 B 23 251
2 34 44