Sunspot drawing of 1987-12-14

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https://doi.org/10.7891/e-manuscripta-142774



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1987-12-14
08:45
Hs 1304.6:2077
https://doi.org/10.7891/e-manuscripta-142774
Observer : Michele Bianda
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
146 3 3 B -27 102
147 3 8 C -32 66
148 3 2 A -25 63
3 9 13