Sunspot drawing of 1968-4-23

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https://doi.org/10.7891/e-manuscripta-95360



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1968-04-23
07:30
Hs 1304.5:3513
https://doi.org/10.7891/e-manuscripta-95360
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
164 3 J 31.9 219.0
176 1 A 19.4 196.9
181 3 B 10.4 143.3
182 9 B 7.2 108.2
183 3 J -23.9 70.3
184 1 A 6.0 147.8
6 20