Sunspot drawing of 1999-4-12

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https://doi.org/10.7891/e-manuscripta-150434



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1999-04-12
07:30
Hs 1304.6:5596
https://doi.org/10.7891/e-manuscripta-150434
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
83 18 12 C 20 282
85 10 13 G -17 261
88 7 7 C -27 244
89 18 23 D -18 234
91 1 1 A 15 295
92 12 14 B -34 233
6 66 70