Sunspot drawing of 1999-9-13

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https://doi.org/10.7891/e-manuscripta-150420



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1999-09-13
07:15
Hs 1304.6:5734
https://doi.org/10.7891/e-manuscripta-150420
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
281 32 28 D 15 26
283 40 30 D -26 8
284 5 6 C 12 7
287 1 3 J 20 331
289 21 26 D 22 4
290 10 14 D 13 295
6 109 107