Sunspot drawing of 1977-3-30

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https://doi.org/10.7891/e-manuscripta-98898



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1977-03-30
08:30
Hs 1304.5:6253
https://doi.org/10.7891/e-manuscripta-98898
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
28 4 B 22.5 263.2
1 4