Sunspot drawing of 1970-4-17

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https://doi.org/10.7891/e-manuscripta-96587



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1970-04-17
07:00
Hs 1304.5:4125
https://doi.org/10.7891/e-manuscripta-96587
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
150 3 J -1.4 28.8
152 31 E 16.0 4.9
157 13 C 11.5 324.8
160 7 C -6.3 278.9
161 C -7.7 267.8
163 3 J 16.5 274.7
166 1 A -27.3 270.8
7 58