Sunspot drawing of 1975-7-6

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https://doi.org/10.7891/e-manuscripta-98183



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1975-07-06
07:15
Hs 1304.5:5724
https://doi.org/10.7891/e-manuscripta-98183
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
52 6 H 6.4 65.1
56 12 B 5.4 298.2
57 7 B -7.8 318.4
3 25