Sunspot drawing of 1992-4-15

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https://doi.org/10.7891/e-manuscripta-146790



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1992-04-15
17:00
Hs 1304.6:3437
https://doi.org/10.7891/e-manuscripta-146790
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
152 1 4 J -15 150
155 15 23 C -15 107
159 11 15 D 6 95
161 15 22 E -26 45
162 3 3 B 13 135
163 7 7 B -18 83
6 52 74