Sunspot drawing of 1987-6-27

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https://doi.org/10.7891/e-manuscripta-143055



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1987-06-27
07:15
Hs 1304.6:1939
https://doi.org/10.7891/e-manuscripta-143055
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
58 1 2 A -32 252
59 6 9 C 19 260
61 6 10 D 29 155
3 13 21