Sunspot drawing of 1999-4-17

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https://doi.org/10.7891/e-manuscripta-150358



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1999-04-17
07:45
Hs 1304.6:5599
https://doi.org/10.7891/e-manuscripta-150358
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
88 1 2 A -27 245
92 13 16 C -32 233
93 9 10 B -19 221
94 6 9 C -19 148
95 3 5 C 22 215
96 4 4 B 17 208
97 2 6 H -13 110
7 38 52