Sunspot drawing of 1958-5-20

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https://doi.org/10.7891/e-manuscripta-88085



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1958-05-20
07:00
Hs 1304.5:415
https://doi.org/10.7891/e-manuscripta-88085
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
241 17 14 D -17.4 193.6
241A 9 9 B -19.3 178.5
249 1 4 J -23.6 143.0
251 19 18 D -6.6 131.8
253 38 35 E 39.3 111.2
254 24 15 C 21.3 80.3
255 9 12 D 18.4 173.6
256 4 5 C -22.9 119.1
259 12 18 D 24.4 135.5
261 2 4 J 17.6 61.3
10 135 134