Sunspot drawing of 1973-2-2

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https://doi.org/10.7891/e-manuscripta-97569



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1973-02-02
08:30
Hs 1304.5:4972
https://doi.org/10.7891/e-manuscripta-97569
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
33 1 A 0.3 86.1
34 8 C -9.0 72.7
2 9