Sunspot drawing of 1989-8-28

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https://doi.org/10.7891/e-manuscripta-144705



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1989-08-28
07:45
Hs 1304.6:2621
https://doi.org/10.7891/e-manuscripta-144705
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
433 12 20 D -22 225
438 5 8 C 24 185
443 3 7 C -17 161
450 1 2 A 23 134
4 21 37