Sunspot drawing of 1958-5-17

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https://doi.org/10.7891/e-manuscripta-88086



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1958-05-17
07:30
Hs 1304.5:412
https://doi.org/10.7891/e-manuscripta-88086
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
240 1 4 J -6.3 210.1
241 10 18 D -18.7 191.1
241A 24 30 D -20.8 178.3
249 5 12 C -23.6 146.3
251 4 10 G -6.8 132.8
252 7 8 C -13.7 182.5
253 6 13 E 39.1 114.2
254 1 4 J 21.0 83.7
8 58 99