Sunspot drawing of 1987-8-9

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https://doi.org/10.7891/e-manuscripta-142841



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1987-08-09
13:30
Hs 1304.6:1981
https://doi.org/10.7891/e-manuscripta-142841
Observer : Michele Bianda
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
78 14 40 E -13 45
79 2 2 B 9 52
80 1 4 H -27 285
3 17 46