Sunspot drawing of 1976-4-26

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https://doi.org/10.7891/e-manuscripta-98374



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1976-04-26
08:00
Hs 1304.5:5972
https://doi.org/10.7891/e-manuscripta-98374
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
17 3 J 4.9 139.6
21 6 J -10.6 40.8
22 12 C 2.4 357.5
3 21