Sunspot drawing of 1991-4-24

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https://doi.org/10.7891/e-manuscripta-145727



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1991-04-24
08:00
Hs 1304.6:3136
https://doi.org/10.7891/e-manuscripta-145727
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
192 5 6 C -11 190
201 3 3 B -20 178
210 2 2 B -22 197
212 10 8 B -29 142
4 20 19