Sunspot drawing of 1977-5-12

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https://doi.org/10.7891/e-manuscripta-98704



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1977-05-12
07:30
Hs 1304.5:6287
https://doi.org/10.7891/e-manuscripta-98704
Observer : Araldo Pittini
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
37 3 J 31.2 130.5
38 13 B -24.2 64.6
39 6 D -21.0 19.5
40 3 B 20.1 126.4
4 25