Sunspot drawing of 1999-4-13

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https://doi.org/10.7891/e-manuscripta-150473



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1999-04-13
07:30
Hs 1304.6:5597
https://doi.org/10.7891/e-manuscripta-150473
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
83 5 10 C 20 282
85 4 10 C -17 261
88 6 10 C -27 245
89 10 17 D -18 233
92 8 17 D -33 235
93 6 11 D -19 223
6 39 75