Sunspot drawing of 1977-9-11

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https://doi.org/10.7891/e-manuscripta-98707



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1977-09-11
08:00
Hs 1304.5:6392
https://doi.org/10.7891/e-manuscripta-98707
Observer : Araldo Pittini
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
103 3 J 23.6 315.0
107 1 A 19.1 240.6
108 5 C 16.1 205.7
109 28 E 7.6 197.0
4 37