Sunspot drawing of 1977-7-28

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https://doi.org/10.7891/e-manuscripta-98767



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1977-07-28
15:45
Hs 1304.5:6353
https://doi.org/10.7891/e-manuscripta-98767
Observer : Araldo Pittini
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
73 12 B 20.1 189.7
74 4 J 16.0 144.9
80 1 A 20.3 140.7
82 1 A 23.8 133.9
4 18