Sunspot drawing of 1973-7-7

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https://doi.org/10.7891/e-manuscripta-97558



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1973-07-07
10:00
Hs 1304.5:5113
https://doi.org/10.7891/e-manuscripta-97558
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
147 17 B -5.8 273.2
148 19 C 12.2 270.3
149 12 C 1.6 249.9
3 48