Sunspot drawing of 1975-6-28

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https://doi.org/10.7891/e-manuscripta-98101



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1975-06-28
05:45
Hs 1304.5:5717
https://doi.org/10.7891/e-manuscripta-98101
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
51 14 D -11.5 159.9
52 15 C 6.6 60.5
53 1 A -5.0 164.2
3 30