Sunspot drawing of 1976-4-15

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https://doi.org/10.7891/e-manuscripta-98388



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1976-04-15
10:00
Hs 1304.5:5963
https://doi.org/10.7891/e-manuscripta-98388
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
15 8 H 2.1 208.8
17 3 J 4.4 138.3
2 11