Sunspot drawing of 1987-12-26

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https://doi.org/10.7891/e-manuscripta-142797



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1987-12-26
08:30
Hs 1304.6:2089
https://doi.org/10.7891/e-manuscripta-142797
Observer : Marco Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
153 12 30 D -33 259
154 2 4 A 13 323
2 14 34