Sunspot drawing of 1999-12-18

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https://doi.org/10.7891/e-manuscripta-150488



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1999-12-18
08:45
Hs 1304.6:5798
https://doi.org/10.7891/e-manuscripta-150488
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
402 3 5 C -33 235
403 25 44 D -13 173
405 10 17 C -13 183
408 1 3 H -17 126
409 4 17 E 19 118
410 1 3 J 11 109
6 44 89