Sunspot drawing of 1977-6-28

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https://doi.org/10.7891/e-manuscripta-98694



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1977-06-28
07:30
Hs 1304.5:6324
https://doi.org/10.7891/e-manuscripta-98694
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
59 19 D -20.9 205.7
60 47 D 14.3 145.2
62 1 A 32.7 233.4
3 67