Sunspot drawing of 1977-5-17

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https://doi.org/10.7891/e-manuscripta-98824



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1977-05-17
08:45
Hs 1304.5:6291
https://doi.org/10.7891/e-manuscripta-98824
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
39 15 B -19.5 15.6
1 15