Sunspot drawing of 1977-5-31

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https://doi.org/10.7891/e-manuscripta-98616



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1977-05-31
07:30
Hs 1304.5:6301
https://doi.org/10.7891/e-manuscripta-98616
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
47 50 C 19.4 209.0
49 10 B 20.0 121.2
2 60