Sunspot drawing of 1988-3-12

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https://doi.org/10.7891/e-manuscripta-143869



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1988-03-12
08:30
Hs 1304.6:2150
https://doi.org/10.7891/e-manuscripta-143869
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
51 7 7 B 30 96
52 8 13 B -23 320
53 5 10 C 22 322
3 20 30