Sunspot drawing of 1973-5-30

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https://doi.org/10.7891/e-manuscripta-97313



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1973-05-30
06:30
Hs 1304.5:5078
https://doi.org/10.7891/e-manuscripta-97313
Observer : Sergio Cortesi
Seeing (SIDC) : 4
Group Not Weighted Weighted Type Latitude Carrington Longit.
121 4 J -1.5 102.4
126 10 C 16.9 67.2
2 14