Sunspot drawing of 1973-3-3

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https://doi.org/10.7891/e-manuscripta-97468



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1973-03-03
08:00
Hs 1304.5:4999
https://doi.org/10.7891/e-manuscripta-97468
Observer : Sergio Cortesi
Seeing (SIDC) : 2
Group Not Weighted Weighted Type Latitude Carrington Longit.
58 4 B -14.1 176.4
59 14 C 6.2 140.5
63 2 A 17.0 62.4
3 20