Sunspot drawing of 1977-5-11

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https://doi.org/10.7891/e-manuscripta-98840



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1977-05-11
07:15
Hs 1304.5:6286
https://doi.org/10.7891/e-manuscripta-98840
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
37 3 J 31.3 130.7
38 2 B -23.8 64.7
39 6 D -21.3 18.9
40 9 B 20.2 126.9
4 20