Sunspot drawing of 1999-9-17

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https://doi.org/10.7891/e-manuscripta-150577



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1999-09-17
07:30
Hs 1304.6:5738
https://doi.org/10.7891/e-manuscripta-150577
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
281 16 25 D 15 27
283 10 14 C -25 7
284 1 3 J 13 9
287 1 3 J 21 329
289 12 17 D 22 5
290 36 30 D 13 294
292 1 3 J -20 252
7 77 95