Sunspot drawing of 1977-5-10

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https://doi.org/10.7891/e-manuscripta-98804



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1977-05-10
10:00
Hs 1304.5:6285
https://doi.org/10.7891/e-manuscripta-98804
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
37 5 J 31.6 130.6
39 7 D -21.3 18.7
40 7 B 20.3 127.1
3 19