Sunspot drawing of 1999-6-20

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https://doi.org/10.7891/e-manuscripta-150500



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1999-06-20
07:30
Hs 1304.6:5653
https://doi.org/10.7891/e-manuscripta-150500
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
165 1 4 H -20 127
167 4 7 C 27 131
169 4 8 C 36 69
173 5 13 D 27 100
175 6 17 D 21 354
5 20 49