Sunspot drawing of 1977-7-21

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https://doi.org/10.7891/e-manuscripta-98661



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1977-07-21
06:30
Hs 1304.5:6346
https://doi.org/10.7891/e-manuscripta-98661
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
74 5 J 15.3 146.2
1 5