Sunspot drawing of 1973-2-3

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https://doi.org/10.7891/e-manuscripta-97334



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1973-02-03
08:45
Hs 1304.5:4973
https://doi.org/10.7891/e-manuscripta-97334
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
34 12 C -8.7 73.1
35 1 A -16.6 184.0
36 1 A 15.7 115.7
3 14