Sunspot drawing of 1987-6-13

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https://doi.org/10.7891/e-manuscripta-143021



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1987-06-13
06:30
Hs 1304.6:1928
https://doi.org/10.7891/e-manuscripta-143021
Observer : Michele Bianda
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
53 2 2 B -20 82
54 2 1 A -12 66
55 1 2 A 27 334
3 5 5