Sunspot drawing of 1988-3-31

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https://doi.org/10.7891/e-manuscripta-143671



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1988-03-31
12:00
Hs 1304.6:2168
https://doi.org/10.7891/e-manuscripta-143671
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
61 9 13 C -34 191
62 61 70 D 19 158
64 11 19 C -20 132
65 8 10 B -21 152
4 89 112