Sunspot drawing of 1999-12-15

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https://doi.org/10.7891/e-manuscripta-150375



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1999-12-15
09:00
Hs 1304.6:5795
https://doi.org/10.7891/e-manuscripta-150375
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
391 3 10 G 10 311
395 3 5 B -16 238
396 1 2 A 15 243
400 2 5 C -12 281
401 1 2 A -28 251
402 3 8 D -34 235
403 10 20 D -13 174
7 23 52