Sunspot drawing of 1973-2-7

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https://doi.org/10.7891/e-manuscripta-97372



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1973-02-07
08:15
Hs 1304.5:4977
https://doi.org/10.7891/e-manuscripta-97372
Observer : Sergio Cortesi
Seeing (SIDC) : 3
Group Not Weighted Weighted Type Latitude Carrington Longit.
34 4 A -8.6 72.6
38 3 J 10.9 16.2
39 6 J 6.4 15.2
41 2 A 14.4 27.7
4 15