Sunspot drawing of 1999-4-10

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https://doi.org/10.7891/e-manuscripta-150450



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1999-04-10
07:30
Hs 1304.6:5594
https://doi.org/10.7891/e-manuscripta-150450
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
81 6 9 B 10 305
83 33 36 D 21 284
85 6 10 G -17 261
86 2 1 A -33 267
88 6 8 C -28 243
89 9 16 C -19 235
6 62 80