Sunspot drawing of 1991-4-25

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https://doi.org/10.7891/e-manuscripta-145758



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1991-04-25
07:15
Hs 1304.6:3137
https://doi.org/10.7891/e-manuscripta-145758
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
192 1 3 J -11 190
210 1 3 A -22 196
212 9 7 B -29 140
213 2 2 A -21 61
4 13 15