Sunspot drawing of 1977-4-1

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https://doi.org/10.7891/e-manuscripta-98826



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1977-04-01
07:30
Hs 1304.5:6254
https://doi.org/10.7891/e-manuscripta-98826
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
30 2 B 24.1 251.3
1 2