Sunspot drawing of 1976-4-22

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https://doi.org/10.7891/e-manuscripta-98376



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1976-04-22
07:00
Hs 1304.5:5970
https://doi.org/10.7891/e-manuscripta-98376
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
17 4 J 4.6 139.5
19 1 A -6.9 171.5
21 5 H -9.6 41.8
3 10