Sunspot drawing of 1977-3-25

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https://doi.org/10.7891/e-manuscripta-98673



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1977-03-25
07:45
Hs 1304.5:6249
https://doi.org/10.7891/e-manuscripta-98673
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
27 1 A 25.3 44.6
28 3 J 24.7 263.4
2 4