Sunspot drawing of 1977-5-13

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https://doi.org/10.7891/e-manuscripta-98708



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1977-05-13
16:00
Hs 1304.5:6288
https://doi.org/10.7891/e-manuscripta-98708
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
37 3 J 30.8 128.6
38 5 B -24.4 63.9
39 7 D -21.1 19.1
3 15