Sunspot drawing of 1991-4-2

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https://doi.org/10.7891/e-manuscripta-145907



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1991-04-02
07:30
Hs 1304.6:3117
https://doi.org/10.7891/e-manuscripta-145907
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
144 61 46 D 15 59
145 46 36 D -9 56
150 26 22 D 11 30
151 2 1 A -11 29
152 2 2 B -7 15
153 1 1 A -10 3
154 1 2 A -24 349
7 139 110